Please do not feed the fish; they _____ die if they eat too much.
#63322
A
shall
B
must
C
need
D
may
推荐题目
There's enough time for you to go to the airport.You hurry now.
#75817
A
should
B
needn't
C
must
D
can't
My sister met him at the street yesterday afternoon, so he __________ your lecture.
#63076
A
shouldn’t have attended
B
needn’t have attended
C
mustn’t have attended
D
couldn’t have attended
I ___________ through that bitter period without your generous help.
#63240
A
couldn’t have gone
B
didn’t go
C
couldn’t go
D
hadn’t gone
-How is your new babysitter? --We _________ ask for a better one. All our kids love her so much.
#63572
A
couldn’t
B
might
C
mustn’t
D
should
—Must I water the flowers now? —No, you ________ . You __________ do it later.
#74201
A
mustn’t, must
B
mustn’t, may
C
needn’t, may
D
needn’t, must