Mountain climbing ________ be very tiring, and many people feel sick ________ the atmosphere gets thinner.
#31554
A
may; while
B
can; as
C
must; though
D
should; for
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It was in the Xichang Satellite Launch Center , ________ I had visited, ________ Chang’eⅠwas launched at about 6:05 pm October 24, 2007.
#32790
A
where; that
B
which; that
C
that; where
D
which; where
The policy of the mainland is very clear and straightforward，and the key problem is_____the leaders of Taiwan will accept it.
#30628
A
that
B
how
C
why
D
whether
It is because she loves her students _____ she is respected by them.
#33103
A
who
B
which
C
what
D
that
— I rang you at about nine, but there was no reply.— Oh, that was probably _____I was seeing the doctor.
#31069
A
why
B
when
C
what
D
That
_______ you sit in front of the computer all day while working, you’d better take exercise for at least an hour every day.
#32517
A
Even if
B
Even though
C
Now that
D
As if