We all know that we ________ our carbon footprint, but I suspect that many people wouldn't be prepared to go as far as Joan Pick, a retired scientist living in south London.
#62336
A
must have reduced
B
should have reduced
C
may have reduced
D
could have reduced
推荐题目
—Can we run across the road now?—No, we _ . We have to wait until the light turns green.
#75388
A
needn't
B
mustn't
C
couldn't
D
shouldn't
It has been announced that all the candidates______ remain in their seats until all the papers have been collected.
#63563
A
can
B
will
C
shall
D
should
—_______ you read the words in English? —No, I can’t. They are too difficult for me.
#76415
A
Must
B
May
C
Can
D
Need
Mike ______have stolen the money from the bank,______he appeared to be rich overnight.
#62763
A
can’t; for
B
might; for
C
must; since
D
can’t; since