21. Peter, I’m really grateful to you. Your advice is much more useful for me than ___ given by Mike.
A．the one B．it C．those D．that
22. We’d like to do _______ we can _________ the poor.
A. how; help B. whatever; to help C. whatever; help D. however; to help
23. The school rules state that no child ______ be allowed out of the school, unless accompanied by an adult.
A will B. must C. shall D. may
24. --- I will come to see your performance at 9:00 tomorrow evening.
---I am sorry, but by then my performance ____ and I ___ reporters in the meeting room.
A. will end ; will meet B. will have ended; will be meeting
C. will be ended; am going to meet . D. is to end , will meet
