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
We’d better hold more such activities, ______ students can combine study with fun.
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A
where
B
that
C
there
D
which
We shouldn’t spend our money testing so many people, most of ____ are healthy.
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A
that
B
which
C
what
D
whom
We talked about the things and persons _______ we remembered at school.
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A
which
B
what
C
whose
D
that
Occasions are quite rare _____I have the time to spend a day with my kids.
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A
who
B
which
C
why
D
when
Is some German friends visited last week?
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A
this school
B
this the school
C
this school one
D
this school where