36．Sally is busy her homework． A．in B．at C．with D．on——青夏教育精英家教网——

摘要：36．Sally is busy her homework． A．in B．at C．with D．on

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Sally is busy ________ her homework．

A．in B．at C．with D．on

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Sally is busy ______ her homework.

A．in

B．at

C．with

D．on

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