I believe that the 21st century is one ______ China will become one of the most powerful economic countries.
#76573
A
which
B
that
C
when
D
where
推荐题目
Lawrence Craven, a doctor from the USA, is the author of several published reports, one of ________ introduced the idea in 1953 _________ aspirin could reduce the risk of heart attacks.
#77613
A
them; when
B
which; that
C
what; that
D
which; when
The growing speed of a plant is influenced by a number of factors, are beyond our control.
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A
most of them
B
most of which
C
most of what
D
most of that
In my opinion, everyone has periods in their lives _______ everything seems very hard.
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A
when
B
where
C
which
D
that
“Drive-ins” have large parking lots _____ customers are served in their cars by waitress.
#75938
A
who
B
when
C
which
D
where