— My sons are not a little restless．— Oh? Boys _______ be boys．
#63089
A
should
B
can
C
may
D
will
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—I’m sorry. I at you at the other day.— Forget it. I was a bit out of control myself.
#63326
A
shouldn’t shout
B
shouldn’t have shouted
C
mustn’t shout
D
mustn’t have shouted
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
—Mom, I play computer games?—Yes, you can. But you have to finish your homework first.
#74555
A
must
B
may
C
will
D
need