At the railway station，the mother waved goodbye to her daughter until the train was________.
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A
out of sight
B
out of reach
C
out of order
D
out of place
推荐题目
Most products, ____ which this is one example, sell well, _______.
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A
of; as advertised
B
of; like advertising
C
/; as an ad
D
/; like an ad
There are many ways in which you can improve your study. But __________, you should work hard.
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A
after all
B
above all
C
for all
D
in all
In those days, we had no phones, so we have to keep in touch _____ writing often.
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A
with
B
of
C
on
D
by
In recent years much more emphasis has been put______ developing the students productive skills.
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A
onto
B
in
C
over
D
On