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The children ______ not to play with the fire.
A. are often told B. tell C. are telling D. told
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Buses and cars ______ coming and going busily.
[ ]
A. can often see B. can be often seen
C. can often be seen D. can be saw often
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—_____ does he meet his friends?
—_____ a month.
A. How often; Twice B. How long; Twice
C. When; Two D. What time; Two
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