The genetic engineering, ______ progress has been very rapid recently, is perhaps the most important of all the sciences．
#69473
A
to which
B
with which
C
in which
D
for
推荐题目
It was quite a serious accident, _________ caused by careless driving.
#72048
A
which I think was
B
I think which was
C
which I think it was
D
I think which it was
The old lady’s hand shook frequently.She explained to her doctor ______ this shaking had begun half a year before, and, ______ only because of this, she had been forced to give up her job.
#72537
A
when;how
B
how;when
C
how;how
D
why;why
Our company will move to a tall building _______ we bought last month.
#70509
A
which
B
when
C
how
D
where
You're the only person ______I've ever met ______could do it.
#73843
A
who;/
B
/; whom
C
whom;/
D
/; who