—What does the sign over there read?—No person ________smoke or carry a lighted cigarette ,cigar or pipe in this area. 
#63550
A
will
B
may
C
shall
D
must
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——Catherine, I have cleaned the room for you.——Thanks, You       it. I could manage it myself.
#63293
A
needn’t do
B
needn’t have done
C
mustn’t do
D
shouldn’t have done.
You ________ in person; a telephone would have been enough.
#62596
A
couldn’t have come
B
needn’t have come
C
shouldn’t have come
D
mustn’t have come