My mother and father ______ the same school.

The Trung Sisters, who were military leaders more than 2,000 years ago, are considered national ______ of Viet Nam.

My grandfather had a difficult ______ since he had to start work at the age of nine.

My uncle died of ______ after fighting the disease for 20 years.

It's my grandparents' 60th wedding anniversary today. The keys to their long and happy ______ are honesty and trust.

Some people are concerned that celebrating foreign festivals can make people lose their sense of ____________.

We may suffer from when we experience an unfamiliar culture for the first time.

We are now living in an increasingly world thanks to globalization.

Foreign tourists are fascinated by a wide variety of traditional Vietnamese.

The of that ancient custom still remains a mystery to local people.

Electric cars are generally more _______-friendly than cars running on petrol.

I try to buy food that is packed in recyclable _______.

Burying waste in _______ can lead to other environmental problems such as soil and air pollution.

Organic waste such as fruit and vegetables can _______ more quickly than other materials.

Plastic _______ is more durable, but it is not good for the environment.

The river is so ________ that it smells like rotten eggs.

Cycling has been gaining in in many parts of Vietnam.

It takes hundreds of years for one plastic bottle to ____________ in the ground.

Cross-cultural fashion styles help to reflect the _______ of the world.

In order to reduce our ________, we should cycle or take a bus to school instead of using motorbikes.

We __________ a documentary about war heroes at 8.30 P.M. last Friday.

I was reading an online article about General Vo Nguyen Giap when my friend ___________.

His sons __________ to work when they saw an accident on the road.

While my mother __________ in the kitchen, my father __________ the living room.

Edison __________ the lightbulb in 1879.

Last night, we __________ to the cinema to watch a movie about Vo Thi Sau.

My parents wanted me to learn how to play musical instruments, so I decided to learn _______ piano with my friends.

She has read ____ interesting book.

Mr. Smith is ____ old customer and ____ honest man.

George Washington was _______ first president of _______ United States.

Phở is must-try dish when you travel to Vietnam.

It’s not a good idea to walk around at night in London.

We all agreed ________ a plan to make our classroom greener.

When we arrived ________ the beach, the festival was over, and the beach was full of rubbish.

If you care ________ the environment, why don't you join our Green Lifestyle campaign?

Global temperatures continue to rise and we don't know what will happen ________ our planet in 100 years.

Everyone knows there is an environmental problem in our school, but no one wants to talk ________ it.

Many celebrities adopt a green lifestyle, ________ helps the environment a lot.

More and more people are becoming aware of saving energy, ___ is good for the environment.