The pollution problem here seems to get more and more serious .Something ____with it .
#76542
A
has done
B
must be done
C
is doing
D
was done
推荐题目
—How much shall I pay for the phone call? —You________. This is free of charge.
#63321
A
shouldn't
B
can't
C
don't have to
D
mustn't
-It’s Sunday today, so you get up so early.-Yes, I can have a good rest.
#74418
A
don’t need
B
don’t have
C
haven’t
D
needn’t
Tom hasn’t come to work since last Friday. he have had an accident?
#63310
A
Must
B
Could
C
Should
D
Might
