The book was written in 1946, ____ the education system has witnessed great changes.
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A
when
B
during which
C
since then
D
since when
推荐题目
. Some of the scientists held the point ______ the book said was right.
#70758
A
what what
B
that that
C
what that
D
that what
The engineers made two big plans for the dam, ____ was never put in force. 
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A
one of them
B
which
C
one of which
D
every one of which
Who would you rather          the watch?
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A
have to repair
B
have fixed
C
get repaired
D
get to repair