— The doctor is busy ________ his work.
#48117
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at
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for
C
with
D
on
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—Please spend much time ____your school work, ___ your parents will be annoyed.—OK. I’ll do it as you say!
#45788
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on, or
B
with, and
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in, but
D
at, then
—Hi, Ann. How do you keep healthy?—I drink milk every day. I think drinking milk is good me.
#47666
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for
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to
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at
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with