The astronaut did many experiments in the spaceship, ______ much help for knowing space.
#78666
A
which we think it is
B
which we think are of
C
of which we think are
D
I think which is of
推荐题目
China's population is expected to increase to about 1.5 billion in 2040, ______it will start to decline slowly.
#78613
A
where
B
which
C
on which
D
after which
Mark drives his car too fast and, what's more, very carelessly, ________ worries his mother.
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A
a
B
what
C
it
D
which
I have a big dream — I want to go into space, _______ will take some time to realize, I guess.
#78626
A
which
B
it
C
what
D
where
________is often the case, the weather has turned out well as expected.
#78661
A
Which
B
When
C
What
D
As
In our factory there are 2,000 workers, two thirds of _______ are women.
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A
them
B
which
C
whom
D
who