Some robots can___________.
A. sing and dance
B. does homework
C. watching TV
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A:I have a look at your book?B: Certainly.
A. May
B. Would
C. Do
It is so late. I go home now.
A. must
B. can
C. may
John’s mother is ill. Hestay at home and take care of her.
A. must
B. has to
C. can
A: _______ I take some photos here?B: No, you _______.
A. May, needn’t
B. Must, mustn’t
Can, mustn’t