Mr. Obama paid a visit to China in November, 2009, _______, needless to say, must strengthen the Sino-US ties.
#77381
A
what
B
that
C
which
D
it
推荐题目
To improve the quality of our products, we asked anyone ____________ had used the products for suggestions.
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A
whoever
B
who
C
which
D
whichever
It was a time ________ volunteers from all over the world visited this nursing home regularly.
#77070
A
which
B
what
C
where
D
when
In all his life, Dickens wrote a large number of excellent novels in the 19th century, _____ some are still popular nowadays.
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A
whose
B
of that
C
in which
D
of which
This is the biggest lab_____ we have ever built in our university.
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A
which
B
what
C
that
D
Where