An awful accident ________， however, occur the other day.
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A
does
B
did
C
has to
D
had to
推荐题目
It was not until she got home __ Mary realized she had left her books in the classroom.
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A
when
B
that
C
where
D
before
It was in 2005 when I was here on business ________I found Chengdu so comfortable for people to live in.
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A
when
B
before
C
that
D
which
—Have you seen the film The War Horsey—Of course, I have．It was in my hometown ______ it was made．
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A
where
B
when
C
that
D
which
Life is like a play; it’s not the length, but the excellence of acting ________ matters.
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A
which
B
that
C
who
D
what