My sister met him at the Grand Theatre yesterday afternoon，so he ________ your lecture.
#62507
A
couldn't have attended
B
needn't have attended
C
mustn't have attended
D
shouldn't have attended
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Sometimes the boy is a bad-tempered child, but he ____ be quite lovely when he wishes．
#63210
A
may
B
can
C
shall
D
must
— Can you play the guitar?— No. I _ ___ . I can play the violin.
#74834
A
needn't
B
may not
C
can't
D
mustn't
-- Waiter! How soon can I get my food? I just have half an hour left before my train leaves.-- It ______ be ready in five minutes.
#62958
A
may
B
should
C
could
D
need