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Important sentences are often marked ______ different colours.
#49424
A
in
B
on
C
about
D
by
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Teenagers are not allowed to stay out late _         school nights.
#45832
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on
B
in
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at
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by
Mary bought a house ____ a small garden. She will move in next week.
#46665
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from
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with
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He often practices English        chatting with his pen pal in Australia.
#48940
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by
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The offices are in _________ front of the classroom.
#50335
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/
B
the
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a
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Noise pollution was a serious problem here      .
#48147
A
in the past
B
in the future
C
since then
D
once a week