—May I smoke here，please?—I am afraid you ．This is a non-smoking area．
#77581
A
can
B
can’t
C
may
D
may not
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—________ you play the piano for us?—Sorry, I can't play the piano, but I can sing for you.
#75423
A
Can
B
Must
C
May
D
Should
—Mike’s parents have bought a 2-floor house with a swimming pool.— Oh, it________ be very expensive.
#76640
A
must
B
can
C
need
D
should
_______ I read English loudly in the morning, I would start from today on.
#63459
A
Must
B
Should
C
Might
D
Shall