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— It’s very kind           Betty to give us a hand.— That’s true. We should thank her           helping us out.
#46050
A
for; for
B
of; for
C
for; of
D
of; of
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 E-mail Tom         Mary@163.com , please.
#47437
A
in
B
at
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on
D
/
Can you learn English ________ chatting on the Internet?
#47295
A
in
B
with
C
by
D
for
We can’t win the match ________your support.
#48371
A
without
B
with
C
under
D
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–What’s wrong _____ you?--I have a headache.
#45966
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for
B
of
C
to
D
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A conversation _____ a wise person is worth ten year’s study of books.
#45844
A
for
B
like
C
with
D
to