One thing’s for sure, the fire _____by some cigarette butts.
#88084
A
might cause
B
could have caused
C
must have been caused
D
should be caused
推荐题目
—Has your father got up?—Sorry, I’m not sure. He __________ got up. Please go and see for yourself.
#89523
A
must have
B
can’t have
C
would have
D
might have
—I hear your journey was not very pleasant.—But for the sudden rain we _______ a wonderful time.
#86896
A
will have
B
should have
C
should have had
D
had
It’s a shame ______ able to give them any advice.
#87215
A
not to have been
B
to have not been
C
to have been not
D
to not have been
Often, when he ______ something that ______ him, he wasted his time drawing some little pictures.
#89280
A
should be doing; gave
B
should have been doing; was given
C
should do; was given
D
should have been doing; had given
---Imagination important in science, and it helps us dream up our future.---You are definitely right. If only something allow me to see insects and spiders magnified without getting close to them.
#89341
A
was; would
B
is; will
C
will be; can
D
is ;could