I : Choose the best answer among A,B,C or D.

1: She ................ a letter when the telephone rang.

A. writes B. wrot C. has written D. was writing

2: William suggested . ........................ at home for a change.

A. staying B. to stay C. stay D. stayed

3: This book is different ................ the one i had.

A. with B. to C. from D. at

II : Complete each space with an appropriate word .

were century problem children was people

Population growth is a serious (1) ......................... around the world. At the beginning ò the 20th (2)........................., there were about 1.5 billion people in the world. In 1984 the worlk population (3) ....................... 4.8 billion people. By the year 2000, It will be about6.1 billion. This growth in population is not happening everywhere. For example in Europe the population is not growing at all. Families in these countries are smaller now. Only about 2.1 (4) ..................... are born for every woman .

3. Choose the best option to complete each sentence. Circle A, B or C.

3. Choose the best option to complete each sentence. Circle A, B or C.

Read the following passage and choose A, B, C or D to indicate the correct answer to each of the following questions.

 In many ways, the increasingly rapid pace of climate change is a direct result of the growth of the human population. In the last 100 years, the world population has more than tripled, from just under 2 billion at the beginning of the century to nearly 7 billion today. In addition, the average person uses more energy and natural resources than the average person one hundred years ago, meaning that the rates of consumption are actually much higher than just the increase in population would imply. For example, it took the world 125 years to use the first one trillion barrels of oil. The next trillion barrels will be used in less than 30 years, which is almost 5 times as fast, not three.

All of these activities: food production, energy usage, and the use of natural resources, contribute to climate change in some way. The greater amounts of oil and other fuels burned to create energy release chemicals which add to global warming. In order to produce more food, farmers cut down trees to gain more land for their fields. In addition, we cut down trees to build the houses needed for a larger population. Those trees are an essential part of controlling global warming; others are too numerous to mention.

 In addition to a growing population, the world also has a population that desires a higher standard of living than in the past, and a higher standard of living requires the use of even more natural resources. A look at one country will provide a clear example of this fact. China is the world’s most populous nation, with 1.3 billion people. Currently, the standard of living for most of those people is far below that of people in first world nations. Therefore, the average Chinese citizen uses far fewer natural resources and less energy than the average citizen of the US or Japan. But China is growing in power, and more of its citizens are beginning to expect a first world lifestyle. If every Chinese person attains a first world lifestyle, the amount of energy and natural resources needed in the world will double, even if the standard of living in every other nation on Earth remains the same as it is today.

The word “others” in the passage refers to ________.

A. problems of global warming in the modern world 

B. examples of the environmental consequences of population growth 

C. ways in which our usage of oil will affect the world climate. 

D. the reasons why trees are essential in controlling global warming