--- What        it be? --- It         be a man, for it is not moving. It      be a dustbin, I think.
#87983
A
can, may, must
B
can, can’t, must
C
can, must, can
D
may, may not, could
推荐题目
—Why aren’t they here yet?—They _______the bus.
#89307
A
can have missed
B
must be late for
C
may have missed
D
might be late for
—Did Jim come?—I don’t know. He _______ while I was out.
#89860
A
might have come
B
might come
C
mush have come
D
should have come
Had I known about this computer program, a huge amount of time and energy       .
#87058
A
would have been saved
B
had been saved
C
will be saved
D
was saved