在下列各句的空白处填入一个最恰当的单词。
1.  Cao Chong had a good way to_____ the big heavy elephant.
2.  The room is too_____ for six persons to live in.
3.  Miss Li taught us a lot of useful _____ for example, agree in with other people.
4.  Manatees are very huge.  They are about l,000 _____. 
5.  In the zoo, animals have to live in small _____. 
6.  Parents should _____ their children to behave well.
7.  There isn't enough _____ left for the cows. They'll be hungry.
8.  He is _____. He always fights with others.
9.  _____ can't grow in the desert because there is no water there.
10.  My grandfather is about sixty years old and his hair has turned _____. 

句型转换。

1. Don't tell a lie. Please tell us the t           , so we can make a right decision.
2. —What color do you prefer, pink or p          ?
    —I prefer pink.
3. In China, people usually s______ hands when they meet for the first time.
4. —May I use the k_____ to cut the apple?    
    —Yes, please.
5. We should often _____(实验)with our own ideas, so that we can improve our skills.
6. —Where are the cars made?
    —They are made in a             (南方的) city.
7. They are going to a______ on TV next month.
8. Don't p____ at others with your fingers.
9. The manatees w______about 1000 pounds.
10. The little boy was made to chop w           in the early morning.
11. Different people have very different            (思想)
12. —_____Could you please eat some delicious food again?
      —No, I am f_____ now.
13. Would you please take out the _____(垃圾)?