1 . I can think of many cases _________ students obviously knew a lot of English words and expressions but couldn’t write a good sentence. (用适当的词填空)

2 . —What was the party like?
—Wonderful. It’s been years _______ I enjoyed myself that much.

A．after

B．before

C．when

D．since

3 . It is often the case ________ anything is possible for those who hang onto hopes. （用适当的词填空）

4 . Occasions are quite rare ________I have time to spend a whole day with my kids. （用适当的词填空）

5 . Generally speaking, students’ inner motivation with high expectations from others ________ essential to their development.

A．is

B．are

C．was

D．were

6 . Ladies and gentlemen, please fasten your seat belts. The plane _______(take) off. (所给词的适当形式填空)

7 . ________ is known to all, good friends ________ happiness and value to life.

A．It; add

B．As; add

C．It; add up

D．As; add to

8 . C______ on the teacher when listening in class, and you will find some information on computer.

9 . The father as well as his children ________ (go) skating on the frozen river every Sunday afternoon in winter. （所给词的适当形式填空）

10 . Although ________ (encourage), the team still finds it hard to carry out the experiment within the limited time. (所给词的适当形式填空）