1. Where am I?
2. Where are my friends?
3. Where's the toy soldier?
4. Where's our friend Sam?
1. This passage is about
<span>(D) destructive human activity. </span>
<span>2. Every year thousands of species of animals </span>
<span>(D) die out. </span>
<span>3. Acid rain is caused by </span>
<span>(D) emissions of industrial enterprises. </span>
<span>4. Which of the following is true? </span>
<span>(C) If we don't make an attempt to stop acid rains we may never see </span>
<span>some animals again. </span>
<span>5. What was not mentioned in the text? </span>
<span>(A) Acid rain is capable of dissolving some rocks and stones. </span>
<span>6. Factory smoke </span>
<span>(D) can travel hundreds of miles. </span>
<span>7. Scientists think acid rain </span>
<span>(D) is killing trees.</span>