1 . I think it no good________________ (read) in bed, which does great harm to your eyes. (所给词的适当形式填空)

2 . You owe ________________ to yourselves to stay longer. Overall, Montreal is a city with wonderful sights and sounds.（用适当的词填空）

3 . As this is my first time in China, I would appreciate __________ if you could recommend some Chinese dishes to me. (用适当的词填空)

4 . ________ is said that about 20% of 25-34-year-olds live with their parents, compared with 16% in 1991. (用适当的词填空)

5 . I would appreciate ________ if you could provide me with information and help. (用适当的词填空)

6 . Much attention should be paid to the rainforest and human beings are supposed to appreciate _______ the animals live together.

7 . After-class activities make it possible for us ________ (enrich) our knowledge and build up our body. (所给词的适当形式填空)

8 . So I thought ________ would be useful to include some humor tips for everyday life.(用适当的词填空)

9 . ________________is important for you that we should study hard . （所给词的适当形式填空）

10 . Some students find ________hard to memorize English words.(用适当的词填空)