—I _____ thank you enough for what you have done for me. —You’re welcome.
#87895
A
may not
B
will not
C
must not
D
can not
推荐题目
He ________ get into his own house because he has lost his keys.
#88359
A
mustn’t
B
doesn’t have to
C
can’t
D
needn’t
It ____ last night, for the ground is wet now.
#88954
A
might not have rained
B
must have rained
C
couldn't have rained
D
rained
If the printer_______ break down under guarantee, we would repair it at our expense.
#87668
A
may
B
could
C
might
D
should
--Must we hand in our homework now?---No, you ___. You ___ hand them in before Friday.
#88933
A
mustn’t , can
B
needn’t, can
C
can't , can
D
mustn’t, must