What are they doing? They .——青夏教育精英家教网——

摘要： What are they doing? They .

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What are they doing? They are .

A. play
B. plays
C. playing

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— What are they doing?
— They are ______________.

[ ]

A. singing
B. sing

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— What are they doing?
— They are ______________.

[ ]

A. play
B. talk
C. laughing

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— What are they doing?
— They are _____________.

A. talk
B. sing
C. working

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What are they doing? They're __________ fun.

A. has
B. having
C. have

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