Listen! They ______ in the next room. [

Listen! They ______ in the next room.
[ ]
A. sing
B. is singing
C. are singing
D. were singing
lianzl520 1年前 已收到1个回答 举报

凤舞天地 幼苗

共回答了17个问题采纳率:94.1% 举报

C

1年前

2
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