Complete the passage with the words in the box, then answer the questions bellow.

from -	as -	which -	them -	because -	of

Everyone wants to reduce pollution. But pollution problem is ________ (1) complicated as it is serious. It is complicated ________ (2) much pollution is caused by things that benefit people. For example, exhaust ________ (3) automobiles causes a large percentage of all air pollution. But automobiles provide transportation for millions of people. Factories discharge much of the material ________ (4) pollutes the air and water, but factories give employment to a large number ________ (5) 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 ________ (6). Most people do not want to do that, of course. But pollution can be gradually reduced in several ways.

What (A) about use (B) public buses instead of (C) motorbikes to reduce (D) exhaust fume?

Give the correct form of the words given in brackets.

Tet or Lunar New Year holiday is the most important _______ for Vietnamese people. (CELEBRATE)

Everyone wants to reduce pollution. But pollution problem is ________ (1) complicated as it is serious. It is complicated ________ (2) much pollution is caused by things that benefit people. For example, exhaust ________ (3) automobiles causes a large percentage of all air pollution. But automobiles provide transportation for millions of people. Factories discharge much of the material ________ (4) pollutes the air and water, but factories give employment to a large number ________ (5) 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 ________ (6). Most people do not want to do that, of course. But pollution can be gradually reduced in several ways.

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

Follow the instructions on the back of the packet ________. (CARE)

My father _______ (leave) Hanoi for Ho Chi Minh City two days ago.

Choose the best answer.

Easter is a joyful festival _________ comes in early spring.

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

Tsunamis, earthquakes and typhoons are ________ disasters. (NATURE)

My nephew enjoys feeding fish every morning.

→ My nephew is interested………

Everyone wants to reduce pollution. But pollution problem is ________ (1) complicated as it is serious. It is complicated ________ (2) much pollution is caused by things that benefit people. For example, exhaust ________ (3) automobiles causes a large percentage of all air pollution. But automobiles provide transportation for millions of people. Factories discharge much of the material ________ (4) pollutes the air and water, but factories give employment to a large number ________ (5) 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 ________ (6). Most people do not want to do that, of course. But pollution can be gradually reduced in several ways.

What would people have to do if they want to reduce pollution?

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

using / bulbs / energy-saving / about / instead of / 100-watt light bulbs / What /?

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

Write the correct form of the verb in each bracket.

My class ________ (visit) Uncle Ho’s mausoleum last weekend.

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