Write the correct form of the verb in each bracket.

If we don’t try to control pollution, it ________ (be) too late.

Everyone wants to reduce pollution. But pollution problem is as complicated as it is serious. It is complicated because much pollution is caused by things that benefit people. For example, exhaust from automobiles causes a large percentage of all air pollution. But automobiles provide transportation for millions of people. Factories discharge much of the material which pollutes the air and water, but factories give employment to a large number of people. Too much fertilizer or pesticide can ruin soil, but fertilizers and pesticide are important aids to the growing of crops. Thus, to end or reduce pollution immediately, people would have to stop using many things that benefit them. Most people do not want to do that, of course. But pollution can be gradually reduced in several ways.

Answer the questions:

Why is the pollution problem complicated?

Complete the second sentence so that it has the similar meaning to the first.

“What about changing the date of the meeting again?” Mr. Nick said.

→ Mr. Nick suggested …………………………………………………………

Complete the second sentence so that it has the similar meaning to the first.

My nephew enjoys feeding fish every morning.

→ My nephew is interested………………………………………

Rearrange the word or phrase in the right order to have meaningful sentences.

she / would not / I / make / so / wish / much / noise /.

Choose the underlined word or phrase (A, B, C or D) that needs correcting.

Would (A) people be able to (B) fly if they have (C) feathers instead of (D) hair?

John is proud _________ his father and loves him so much.

Write the correct form of the verb in each bracket.

Every day, my sister walks to school, but today she _________ (go) by bike.

Rearrange the word or phrase in the right order to have meaningful sentences.

should / playing / not / much / of / free / Children / time / spend / electronic / games / their /.

Easter is a joyful festival _________ comes in early spring.

Complete the second sentence so that it has the similar meaning to the first.

Mrs. Brown has just bought a car. The car is very fast and modern.

→ Mrs. Brown has just ……………………………………………………

Choose one word whose underlined part is pronounced differently from the others.

Choose one word whose underlined part is pronounced differently from the others.

Everyone wants to reduce pollution. But pollution problem is as complicated as it is serious. It is complicated because much pollution is caused by things that benefit people. For example, exhaust from automobiles causes a large percentage of all air pollution. But automobiles provide transportation for millions of people. Factories discharge much of the material which pollutes the air and water, but factories give employment to a large number of people. Too much fertilizer or pesticide can ruin soil, but fertilizers and pesticide are important aids to the growing of crops. Thus, to end or reduce pollution immediately, people would have to stop using many things that benefit them. Most people do not want to do that, of course. But pollution can be gradually reduced in several ways.

Answer the questions:

Do factories discharge a lot of the material that pollutes the water?

Choose one word whose underlined part is pronounced differently from the others.

Mrs. Hoa is generous to the poor _________ she is not rich.