You mustn't go near the edge of the cliff. --> You are (a)  

This jacket is so small that I can't wear it. --> This jacket is too (a)  

In spite of her difficult living condition, she worked extremely hard. --> Although her (a)  

Sharks aren't so intellegent as dolphins. --> Dolphins are (a)  

Jack's car had broken down. He had to take a taxi. --> Jack,

(a)  

Over a thousand people use this swimming pool every week. --> This swimming pool

(a)  

"How many students are there in your class?" he asked me. --> He asked me (a)   .

I've never driven along such a bumby road. --> This is the (a)  

They made all students sign up for the course before September. --> Each student (a)  

Although he got up late, he didn't miss the bus. --> In spite (a)   , he didn't miss the bus.

They are going to enlarge this road in two months. --> This road (a)  

The coffee is so hot that I can't drink it. --> The coffee (a)  

This is the best meal I have ever eaten. --> I have never (a)  

I can't cook as well as my mother. --> My mother

(a)  

I would like you to help me to put the chair away. --> Do you mind (a)  

Unless he phones her immediately, he won't get any information. --> If (a)  

You mustn't go near the edge of the cliff. --> You are (a)  

John is not old enough to join the club. --> John is too (a)  

We started cooking for the party four hours ago. --> We have (a)  

You mustn't fish in this park. --> You are (a)  

Mount Pinatubo is located in the Philippines. It erupted in 1991. —> Mount Pinatubo, which (a)  

If you read many books, you will have much knowledge. —> The more

(a)  

The helicopter saw the victims in the sea, but it could not rescue them. --> Despite (a)  

She hasn't hung out with him since he left the university. --> She stopped (a)  

Climbing without a safety rope is forbidden. --> You mustn't (a)  

The thief broke a window to get into the house when we were away on holiday. --> A window (a)  

He found that the marathon was completely exhauting. --> He was (a)  

His injured ankle may prevent him from playing in tomorrow's game. --> Because of (a)  

The sea is so cold that we can't go swimming. --> The sea is not (a)  

As the band were playing their first song, all the lights went out. --> The band were playing (a)  

The club's activities will raise people awareness of environmental issues. --> People's awareness (a)  

Your mother gave you the money. What did you do with it? --> What (a)  

"Do you like watching TV programmes about wild animals?" my friend asked me. --> My friend asked me (a)  

We ate at that restaurant several times during our stay in Rome. --> While we (a)  

Fiona had to get on the plane even though she was afraid of flying. --> Despite (a)  

Albert is slower at doing things than Peter. --> Albert is not (a)  

We haven't had dinner together for many years. --> It's many years (a)  

These girls are too young to get married. --> These girls are so (a)  

The students mustn't use mobile phone during the lesson. --> The students aren't (a)  

Nothing has been decided yet. --> No decision (a)  

He really enjoys watching horror movies with his his colleagues. (KEEN)

(a)  

You mustn't touch the dogs. (ALLOWED)

(a)  

Nancy is the most intelligent in our class. --> No one (a)  

This coffee is too hot for me to drink. (SO)

(a)  

We are going to pick rubbish in the central park this weekend. --> Rubbish in (a)  

In spite of the bad weather, they went out for dinner. (ALTHOUGH) --> They (a)  

The man is my boss. His wife works for the local newspaper. --> The man (a)  

Your car is very impressive. --> How (a)  

She said, "I don't know where my shoes are." --> She said that (a)  

Anita last saw her aunt three months ago. --> Anita has (a)  

Failing the English test was shocking to her. --> She (a)  

The landscape is so spectacular. --> How (a)  

To me, skydiving is the most risky extreme sport. --> To me, no extreme sport (a)  

Mr.Jerry was injured in the car accident. He is recovering well. --> Mr. Jerry, (a)  

Despite some potential risks, he invented his savings in the company. --> Although there (a)  

For me, ice skating isn't bad.--> I don't (a)  

We don't expect much snow this afternoon. --> We expect a (a)  

"Finish your homework before you watch TV." said my mother. --> My mother (a)  

He drove so quickly that we couldn't keep pace with him. --> He didn't drive (a)  

Other oceans in the world aren't as large as the Pacific Ocean. --> Pacific Ocean (a)  

The cartoon was interesting to the children. --> The children felt (a)  

I last met Jane when I was in Ha Noi. --> I have (a)  

Mr. Smith are going to paint this house and these cars for Christmas Day. --> This house (a)  

Please bring that outfit over here if it has any damage." the clerk said to Lisa. --> The clerk told Lisa (a)  

I'll show you the second hand shop bookshop. You can find valuable books in this shop. (Relative clause)

(a)  

We mustn't speak freely in class. --> Our teacher doesn't allow (a)  

His drawing is very perfect. --> How (a)  

You don't try your best. As a result, you are not accepted to that company. --> If you (a)  

Every staff isn't allowed to smoke or eat in the office. --> Every staff mustn't (a)  

He was such a quick driver that we couldn't catch up with him. --> He drove (a)  

The last time they did the test was a decade ago. --> They have (a)  

I've never met any more dependable person than George. --> George (a)  

My boss said to me "Did you give the letter to Mr.Watson yesterday?" --> My boss asked me (a)  

Did your parents make you study hard when you were at school? --> Were you made (a)  

Did your exam results please you? --> Were you satisfied (a)  

Although the streets are narrow, many people drive cars in this city. --> In spite (a)  

The printer works efficiently. We prefer its functions. --> The printer (a)  

The last time I saw a Hollywood film was ages ago. --> I have (a)  

He's too short to change the bulb without getting on a chair. --> He's (a)  

The other students who (also that) live in the dormitory are really friendly. --> The other students (a)  

You are prohibited from entering my home. --> You must (a)  

The job that he had last year was the most challenging job he's had. --> No job he's had (a)  

This question is so hard. We can't explain it. --> This question is too (a)  

French architect J.Bourard designed Sai Gon Notre-Dame Cathedral Basilica in the 1870s. --> Sai Gon Notre-Dame Cathedral Basilica (a)  

There is not much sugar in the jar. --> There is only (a)  

The phone call interrupted my breakfast. --> I was (a)  

My grandmother hates going to noisy parties and crowded places. --> My grandmother never (a)  

We should not leave the door open at night. --> We should avoid (a)  

We will travel to Ho Chi Minh City in three hours. --> It will (a)  

I'm too young to drive a car. --> I'm not (a)  

It can be very frightening for a child to go into hospital. --> A child can (a)  

They'll have to change the date of the meeting again. --> The date (a)  

Someone knocked at the door during our dinner time. --> While we were (a)  

The strong wind damaged the trees in the garden last night. --> The trees (a)  

There is no milk in the fridge. --> There is not (a)  

I have never received such an attractive job offer before. --> This is the (a)  

Do you know the boy sitting next to me at Nam's birthday party yesterday? --> Do you know the bo who (a)