The last time we had great fun was _____ we were visiting the Water Park.
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A
where
B
how
C
when
D
why
推荐题目
 The story is very interesting, and it is _______.
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A
well worth reading
B
well worthy of reading
C
very worthy reading
D
worth to read
. Put the books back _______ they belong after you have finished them.
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A
where
B
to where
C
to which
D
to the place