25. ___________ the classroom, the students went to the playground to watch the football match.

A. To clean B. Having cleaned C. Cleaned D. Cleaning

24. Our town has dozens of factories, ___________several saw mills.

A. included B. are including C. are included D. including

23. She is writing a letter to a friend of hers, ___________ him to attend the meeting.

A. having invited B. inviting C. to invite D. invited

22. ___________ ill worried my parents greatly.

A. I fell B. Me falling C. My falling D. I falling

21. ___________ for several weeks, the city needed food.

A. As having flooded B. being flooded C. Having been flooded D. To flood

20. He dressed himself quickly and ___________ his schoolbag, went to school.

A. carried B. to carry C. carrying D. carries

19. Although punctual himself, the professor was quite used ___________ late for his lecture.

A. to have students B. for students to be

C. for students' being D. to students' being

18. It is no good ___________ to come now. He is busy.

A. if you ask him B. to ask him C. asking him D. that you ask him

17. He suggested ___________ on Saturday.

A. to have a meeting B. having a meeting C. a meeting to have D. that having a meeting

16. Would you ___________ me your identification card, sir?

A. mind to show B. mind showing C. trouble to show D. trouble showing