can
may
need
must
第1题：
33． —Excuse me，where are we going to have our．class meeting?
—I'm not sure． Ask our monitor，please． He _________ know．
A． can
B． may
C． need
D． shall
第2题：
If I may be () further assistance () you, please let me know.
A、of,for
B、with,to
C、of,to
D、upon,to
第3题：
A、of course
B、thank you. I may
C、I'll have a try
D、well，I won't disappoint you
第4题：
Stranger: I wonder if you could spare me a few minutes of your time?
Woman: ______
A、May I take a message?
B、I don't know if I can.
C、What have you decided?
D、You may have it longer if you like.
第5题：
A、dentist
B、the dentists'
C、the dentist's
D、the dentist
第6题：
A I don't think you are worth
B Let me pay for it ;
C I think you may talk to your boss
第7题：
–– Son: Mom, may I play computer game for an hour or so?
–– Mom: ____
A: Your teacher tells me that you should study harder.
B: Sorry, Dad ’s using the computer now.
C: I ’ve said before that the game takes too long.
D: Well, ah ⋯You’re absolutely right to ask.
第8题：
The traffic is heavy this day，I____________arrive a bit late，so could you save me a place?
A．can
B．must
C．need
D．might
第9题：
When you go abroad, do you ______ take your passport?
A、have to
B、ought to
C、need
D、must
第10题：
3．—__________ 1 go out for a while?
—No，you __________ You must finish your homework first．
A． Must，needn't
B． Can，may
C． May，mustn't
D． May，must