—The research on the new flu virus vaccine is challenging and demanding. Who do you think can do the job?—________ my students have a try?
#62321
A
May
B
Must
C
Will
D
Shall
推荐题目
---There is somebody knocking at the door. Who________ it be?---I’m not sure. It ________ be a postman.
#75825
A
may; must
B
will; can
C
can; may
D
may; will
— Did you visit the museum today? — No. We ______ it, but we spent too much time shopping.
#63436
A
could have visited
B
must have visited
C
may have visited
D
couldn’t have visited
For breakfast, I usually have______ and two pieces of bread.
#77984
A
a cup of mild half
B
half a cup of milk
C
a half milk cup
D
half a milk cup
I__________through that bitter period without your generous help.
#63620
A
couldn’t have gone
B
didn’t go
C
wouldn’t go
D
hadn’t gone
— Can we leave the classroom now?— No, you ______. You ______ to leave until the bell rings.
#74363
A
mustn’t, are allowed
B
don’t have to, are allowed
C
needn’t, aren’t allowed
D
can’t, aren’t allowed