1．Listen! The students in the classroom. A. are singing B. sing C. singing D. is singing——青夏教育精英家教网—

摘要：1．Listen! The students in the classroom. A. are singing B. sing C. singing D. is singing

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Listen, a small number of students ______ in the classroom.

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

Listen, a small number of students ______ in the classroom.

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

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