20. Soldiers and residents ____ _____ the dyke against the flood.
A. took a turn; watch B. took turn; to watch
C. took the turn; watching D. took turns; to watch
19. Are you all teacher from middle schools? Yes, ______.
A. we all used to be B. we used to be all C. we all are D. we are all
18. Mr. Cassalt was much experienced about this work. I know, but the question is ____ he will stick to the work. A. that B. whether C. if D. what
17. If you won’ t do it ____.
A. neither I will B. nor won’t I C. no more will I D. either will I
16. Every teacher and every student ___ on the playground, shouting in anger. They were
protesting America’s aggressing Yugoslavia. A. was B. were C. has been D. have been
15. ____ you are wearing so many clothes today? I have caught a bad cold.
A. How about B. What about C. How come D. How comes
14. After many ears of hard work, he finally turned ____.
A. a qualified teacher B. so qualified a teacher
C. qualified teacher D. such a qualified teacher
13. ___ used to be thought that the earth was square. A. It B. That C. What D. How
12. It’s time that you ____ home and I’d rather you _____ again tomorrow.
A. are going; will come B. go; are coming
C. went; would come D. would go; would come
11. The teacher suggested that the homework ____ in class.
A. be not done B. not be done C. was not done D. were not done