Listen! They ______ in the next room.

A. sing
B. is singing
C. are singing
D. were singing
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科目：初中英語 來源：專項題 題型：單選題

Listen! They ______ in the next room.
[     ]
A. sing
B. is singing
C. are singing
D. were singing

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科目：初中英語 來源：安徽省期中題 題型：單選題

Listen! They _______ in the next room.

[     ]

A. are singing
B. is singing
C. are sing
D. sing

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