The book was written in 1946, _______ the education system has witnessed great changes.
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A
since then
B
when
C
since when
D
during which
推荐题目
At the party，John made up a joke，________ people burst out laughing.
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A
on which
B
by which
C
at which
D
from which
Everyone likes to live in a house ______ windows face the south.
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A
whose
B
which
C
its
D
and which
On her birthday, she received from her parents a nice present ________ a note was attached, saying “We love you so much”.
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A
which
B
to which
C
in which
D
where
The president of the World Bank says he has a passion for China , , he remembers starting as early as his childhood.
#76210
A
where
B
which
C
what
D
when