4.　 ____ you understand this rule, you’ll have no further difficulty.

A. Even if　　　　 B. Once　　　　　 C. As soon as　　　 D. While

3. 　If I were you, I couldn’t walk ____ far during the journey.

A. very　　　　　 B. even　　　　　 C. quite　　　　　 D. that

2. 　The problem is ____ he has known the truth of the matter.

A. what　　　　　 B. when　　　　　 C. that　　　　　 D. how

1. 　He stood at the entrance of the station, ____ passengers ____in and out.

A. to observe; go　 B. observing; going C. observed; to go　 D. and observed; gone

8.　 Stop s________ out of the window and do some work!

Keys: 1. sight 2. deserted 3. nowhere 4. rough 5. firmly 6. still 7. rare 8. staring

7.　 She is a good student; it’s very r________ for her to miss a day at school.

6.　 He stood s________ for some time, with his lips pressed together.

5.　 He will certainly succeed, which we f________ believe, without any question.

4.　 Her hands are r________ from hard work. She always works like farmers.

3.　 The theater was so crowded that there was n________ for us to sit in here.