—What a pity! Their experiment is a failure.—They ________ better under more favorable conditions.
#86419
A
should have done
B
could have done
C
must have done
D
may have done
推荐题目
Last night the order came that all those infected with the deadly disease ________.
#87974
A
was separated
B
should separate
C
be separated
D
were separated
——I left my handbag on the train, but luckily someone gave it to a railway official.——How unbelievable to get it back! I mean, someone ______ it.
#86384
A
will have stolen
B
might have stolen
C
should have stolen
D
must have stolen
Without your help, I ＿＿＿＿the exam last term.
#89943
A
failed in
B
would have failed
C
wouldn’t pass
D
would fail
—I left my handbag on the train, but luckily someone gave it to a railway official.—How unbelievable to get it back! I mean, someone ______ it.
#87578
A
will have stolen
B
might have stolen
C
should have stolen
D
must have stolen
.My tutor explained that I ________read lots of different texts that contain different opinions.
#88458
A
should
B
must
C
shall
D
will