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
推荐题目
The teacher divided the whole class, which consisted ______ 40 students, into four groups.
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A
in
B
from
C
of
D
off
Yemeni President signed a deal under which he will step down after 33 years in and 10 months of protests against his rule.
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A
power
B
danger
C
store
D
secret
After that earthquake last year, we had to start ______ scratch rebuilding our houses.
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A
of
B
from
C
in
D
up
The great success of this program has been largely _____ the support given by the 10 local business men.
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instead of
B
thanks to
C
due to
D
as a consequence
Nowadays，scientists are working hard to find a best way of treating addictions ________ drugs.
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A
of
B
in
C
on
D
to