All _____ made _____ possible for China to succeed in carrying on its reforms and open-door policy.
A. what happened; it B. what happened; that
C. that happened; it D. that happened; that
We don’t doubt _____ he will succeed in the research work.
A. that B. whether
C. how D. what
—Has Mary finished writing her article? — No, and it _____ before class was over.
A. should be finished B. should finish
C. should have finished D. ought to have been finished
John left a word with my secretary ____ he would call me later.
A. who B. that
C. what D. which
This project ______ considered thoroughly, and I’m sure it ______ finished on time.
A. must be; may be B. should be; can be
C. may be; must be D. can be; should be
Mrs. Brown really ____ go on a diet. She has put on so much weight since she gave up jogging.
A. could B. ought to
C. may D. must
