【正文】
ired. He’s _________in bed and __________a rest. A. lie。 The worker_________us about the_______of the bridge. 4. 樹(shù)木能互相交流。 for C. When。 1. The book is____________. Many of us are __________in it. A. interesting , interested B. interested。 1. I don’t understand why he is so i______________in playing puter games. 2. Yesterday I bought a u________________dictionary. 3. Do you e_______________fresh air? 4. Trees c__________________the air and clean it. 5. I w_________him about the danger, but he wouldn’t listen. 6. We should help e_________ other. 7. Now wild animals are in great d________________. 8. Can trees municate w_________ one another. 9. There are three c_____________ for the answer. 10. Don’t make any n____________。 We should _________ _______________the environment. 7. 沒(méi)有水和空氣,無(wú)人能生存。 having D. l