21. ——Tom, you are caught late again.
A. not at all B. just my luck C. never mind D. that's all right
22. ——What do you think of the concert?
——I really enjoy it. I didn't expect it was ____ wonderful.
A. as B. more C. most D. very
23. The engineers made two big plans for the dam, ____ was never put in force.
A. one of them B. which C. one of which D. every one of which
24. I have no one ____ me, for I am a new comer here.
A. help B. helping C. to help D. to have helped
25. The little girl couldn't work the problem out. She wasn't ____ clever.
A. that B. much C. enough D. too