21. Don’t put too much _____ in what the newspaper says.
A. certainty B. insurance C. content D. confidence
22. Man has yet to ____ the stars.
A. console B. conceal C. consent D. conquer
23. If I ____, I would have studied my lessons better.
A. had not graduated B. graduates C. graduated D. have not graduated
24. He looks younger, but in fact he is 5 years____ to me.
A. older B. younger C. senior D. naïve
25. There is no ____ to the house from the main road.
A. access B. avenue C. exposure D. edge