3. Terry into the hall when no one .
A. slipped; was looking
B. had slipped; looked
C. was slipping; looked
D. slipped; had looked
2. Look at the little child wandering about — maybe he his mother.
A. is losing
B. has lost
C. had lost
D. will lose
Ⅲ.语法巩固。
1. I feel really exhausted. I all afternoon and I don’t seem to have finished anything.
A. shopped
B. have been shopping
C. had shopped
D. have shopped
6. Human biological rhythms are related the natural cycle of day and night.
5. We were late because we had got stuck the traffic jam and missed our flight.
4. Teens spend average 55 minutes a day on Facebook, compared 38 minutes for adults.
3. How can you persuade them the advantages of solar cars?
2. As a student, that was the last time I went a period of stress.
Ⅱ.介/副词填空。
1. Thanks years of hard work, 90% of the rural population now has enough food and clothing.
10. The centre offers activities for everyone, whatever your age or (physics) condition.