－Why are you looking so worried? Is there anything I can do for you?－The computer break down when I nearly finished my composition.
#62970
A
can
B
should
C
must
D
dare
推荐题目
Don’t worry. All the children will_____ arrive at school on time tomorrow.
#75043
A
are able to
B
can
C
be able to
D
can be able to
--- May we leave the classroom now? --- No, you ____________ . You ____________ to leave before the bell rings.
#78161
A
mustn’t, are allowed
B
don’t have to, are allowed
C
needn’t, aren’t allowed
D
can’t, aren’t allowed
—How did you like the concert last night ?—I enjoyed it very much, but the dancers _____ a better job．
#63517
A
could have done
B
must have done
C
could do
D
had done