21. The engineer is thought to be capable and modest, so his promotion to manager is a popular ________.
A. achievement B. appointment C. commitment D. employment
22. We have already discussed this plan ________， so next we should spare no effort to carry it out.
A. at length B. at random C. at ease D. at best
23. Our organization won't have any official corrupt at any time.
A. become B. to become C. becoming D. becomes
24. We won't take part in that activity for the simple reason we have no interest in it.
A. that B. which C. where D. why
25. Mike is so loyal to his friends that you can trust him not to your secret m any case.
A. put away B. give away C. take away D. throw away
26. We were told to keep silent while the experiment in the laboratory.
A. would be performed B . was being performed
C. had been performed D. was to be performed
27. —John, remember to bring your dictionary tomorrow morning.
— . I'll let you have it then.
A. Never mind B. Come on C. Got it D. Forget it
