10.It;since

9.It seems;is worried

8.told me nothing

7.too;to

6.staying at home to going out

5.whom I shall

4.It seemed that

her;nor;likes

3.wished;to offer

20．他认为只要他尽力，他可以做任何事情。

Key:Ⅰ.1-5.BCDAD　 6-10.CBABC　 11-15.CBBCC　 16-20.DBBCA　 21-25.BBDBA

　 26-30.BAAAB　 31-35.DACCC　 36-40.DABBA　 41-45.CCBBA

19．那家商店的食物味道都很好，我不知该挑哪一种。