—Sorry, sir. I can’t answer this question. ---Well, you are supposed______ this part of history.
#86779
A
reading
B
to be reading
C
to have read
D
having read
推荐题目
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
.My tutor explained that I ________read lots of different texts that contain different opinions.
#88458
A
should
B
must
C
shall
D
will
John promised his doctor he ________ not smoke, and he has smoked ever since.
#89109
A
might
B
should
C
could
D
Would.
—What happened to the young trees we planted last week?—The trees _ well, but I_ them．
#86829
A
might grow; hadn't watered
B
needn't have grown; didn't water
C
would have grown; didn't water
D
would grow; hadn't watered