. I ____ to the top of the tree, but I fell off it and hurt my leg.
#88189
A
must have climbed
B
was able to climb
C
could have climbed
D
should have climbed
推荐题目
—She looks very happy. She ______ have passed the exam.—I guess so. It’s not difficult after all.
#90482
A
should
B
could
C
must
D
might
As Commander-in-Chief of the armed forces,I have commanded that all measures for our defense.
#89332
A
had been taken
B
be taken
C
would be taken
D
be made
It is important that we wild animals.
#87824
A
ill protect
B
hould protect
C
hall protect
D
re protecting
My careless friend Bob received a ticket for speeding. He ____ have driven so fast.
#87755
A
can’t
B
wouldn’t
C
mustn’t
D
shouldn’t
Cars play an important role in modem life, but they also cause many problems like air pollution.
#87845
A
should
B
can
C
must
D
will