25.An ___ between parents regarding the rearing of their children often goes on for years. A. controversy B. argument C. debate D. dispute ...

19.There is little chance that mankind would ___ a nuclear war. A. retain B. edure C. survive D. maintain ...

1.___ man can now create radioactive elements, there is nothing he can do to reduce their radioactivity. A. As B. Whether C. While D. Now that ...

14.We ___ so far ten passages. A. cover B. covered C. are covering D. have covered ...

8.I wish I ____ able to tell him all about it last night. A. was B. were C. had been D. should be ...

2.Stop writing. It’s time that you ___ your papers. A. must hand in B. have to hand in C. could hand in D. handed in ...

15.The writer has published many books,______ are well received by the readers. A. none of whom B. all of which C. neither of who D. one of which ...

9.Her smile has a mysterious ___. A. understanding B. explanation C. indication D. implication ...

3.The order came ___the soldiers ____the small village the next morning. A. that; had to leave B. That; should leave C. / ;must leave D. when ;should leave ...

22.In the meantime, the question facing business is whether such research is ___ the cost. A. worth B. worth of C. worthy D. worthwhile ...