Nick is reading a novel _______ Jack is reading a cartoon.

______ trees and burning forests destroy a lot of wildlife habitats.

The panda’s natural ______ is the bamboo forest.

I was not at home ______ he came to see me yesterday.

We cleaned up everything at the campsite ______ we left.

What causes the most pollution?

I always take off my shoes _____ I come home.

Khoanh tròn vào liên từ thích hợp để hoàn thành những phức dưới đây.

At 8 pm last night, I was doing my homework ....... my sister was playing with her toys

Khoanh tròn vào liên từ thích hợp để hoàn thành những phức dưới đây.

They have worked at this company ......... they graduated

Khoanh tròn vào liên từ thích hợp để hoàn thành những phức dưới đây.

......... I had eaten my breakfast, I went to school by bus

I bring my own lunch ____ the food in the canteen is terrible.

She had an unpleasant experience ................. she was in Thai Lan.

Joey was playing the guitar .................... Danny was washing the dishes.

Do not disturb me ___ I am busy with my work!

They had to stay in the camp ___ the storm passed.

___ I have finished my work, I will take you to the mall.

She was sending text messages........she was walking down the street.

Make sure you close all the windows ___ it starts to rain.

Don't go out ___ you've finished your work.

Richard called me _______I was parking the car.

Water pollution has _______ many diseases for plants, animals and especially people.

Water pollution can put negative _________ on our health.

Any factories pollute the environment will be _______ heavily.

According to scientists, exhaust fumes are _________ our hometown.

________ pollution can directly cause hearing loss.

A lot of waste from hotels and factories is _____ into the lakes.

Ships spill oil in oceans and rivers. This leads ________ the death of many aquatic animals and plants.

The boy doesn’t go to bed ______.

_______, Joe stays in bed and reads magazines.

______, the alarming clock woke him up.

She telephoned the police immediately ______ the robbery.

______ the work, he called me out for coffee.

______ to the classroom after the break time, he found his bag was not there.

______, we will leave.

Unfortunately, fertilizers from surrounding farmland has reduced the ______________ life.

Their main goal is to promote environmental ______________.

This region is the ______________ of many species of wild flowers.

She studies mountain gorillas in their natural ______________.

Choose the word with the underlined part which is differently pronounced from the others.

Choose the word which is stressed differently from the others.

If the temperature _____________ rising, the polar ice caps will melt.

Because of _______ pollution, the bicycle may someday replace the automobile.

Students should learn some practical ways that help to __________ pollution.

People think that global warming ____________ lots of problems in the future.

Parents should teach children not to __________ wastes on the road.

Air pollution occurs when the atmosphere contains gases, dust, or fumes in ______ amounts.

He was talking about the film ______ he saw last night.

I sleep with the window open ______ it's really cold.

The sight of too many telephone poles, advertising billboards, overhead power lines, or shop signs may cause ______ pollution.

People don't care much about the environment, so they keep ______ it worse.

Noise pollution occurs ______ there are too many loud sounds in the environment.

Americans throw ______ twenty-eight and a half million tons of plastic in landfills every year.

Don't forget to turn off the lights ______ you go out.

The ______ of air pollution are alarming.

Mary plays with the boy ______ he is naughty.

She went to the gym ______ she had finished her work.

Land pollution is responsible for damage done ______ natural habitat of animals.

Harmful gases like nitrogen oxides and sulphur oxides are ______ into the atmosphere during the burning of fossil fuels

When radiation goes into the land, air or water, it is called radioactive ______.

People shouldn't throw away single-use products but ______ them.

The death rate would ______ if hygienic conditions were improved.

The people in my village often ______ down trees to build houses.

______ pollution is the contamination of lakes, rivers, oceans, or groundwater, usually by human activities

You shouldn't dump the rubbish into the river to reduce ______ pollution

Land pollution happens when human activities ______ the Earth's surface.

They can ______ campfires on the beach near the hotel.

A number of cleaning products contain ______ chemicals

The gases from the exhausts of cars have also increased ______ pollution in most cities.

We can take part in activities like picking ______ and planting trees to protect nature and the environment.

Forests help release oxygen and absorb __________________

We should ______ our carbon footprint to protect the environment.

"Carbon footprint" is the amount of carbon dioxide that we ______ into the environment.

You should turn off devices that you are not using to ______ electricity.

How many years does it take for a plastic bottle to fully decompose?

What does he try to do?

I will finish my homework ________my father arrives home late this evening.

Unfortunately, fertilizers from surrounding farmland has reduced the ______________ life.

The restaurant has a ______________ menu that includes dishes from all over the world.

 ______________ in the area includes deer, bears, and eagles.

This region is the ______________ of many species of wild flowers.

She studies mountain gorillas in their natural ______________.

Find the word which has a different sound in the part underlined.

Find the word which has a different sound in the part underlined.

Find the word which has a different sound in the part underlined.

Find the word which has a different sound in the part underlined.

Find the word which has a different sound in the part underlined.

Khoanh tròn vào liên từ thích hợp để hoàn thành những phức dưới đây.

They have worked at this company ......... they graduated

Khoanh tròn vào liên từ thích hợp để hoàn thành những phức dưới đây.

Catherine was shocked ............. she found out the truth.

I always take off my shoes _____ I come home.

Khoanh tròn vào liên từ thích hợp để hoàn thành những phức dưới đây.

......... I had eaten my breakfast, I went to school by bus

We can _____ more trees in our neighbourhood.

She _____ her mobile phone