A huge amount of oil was spilt on the East Sea, the causes of ______ are still under investigation.
#78658
A
it
B
that
C
which
D
whom
推荐题目
(2013·临沂二模)________ is often the case with old people, my grandfather is fond of doing morning exercise.
#78623
A
As
B
Which
C
What
D
It
The growing speed of a plant is influenced by a number of factors, ________ are beyond our control.
#78648
A
most of them
B
most of which
C
most of what
D
most of that
The result of the experiment was every good, ______ we hadn’t expect.
#78709
A
when
B
that
C
which
D
what
Now everyone is concerned about how to conquer the economic crisis, __________is very important for us to preserve our standard of living．
#78697
A
which success
B
its success
C
the success of which
D
the success of it