All of the flowers now raised here have developed from those _______ in the forest.
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A
once they grew
B
they grew once
C
they once grew
D
once grew
推荐题目
--Why does the lake smell terrible? ---Because large quantities of water ______.
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A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
There ______ a sports meeting in our school next week.
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A
will be
B
will have
C
are going to be
D
is going to have
Do you remember those days _______ we spent together along the seashore very happily?
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A
when
B
where
C
which
D
what