Listen! The birdin the tree.A. singB. singingC. is singingD. is sing.

发布时间：2020-08-21 21:08:01

Listen! The bird     in the tree.
A. sing
B. singing
C. is singing
D. is sing.

网友回答

A. sing
B. singing
(答案→)C. is singing
D. is sing.
解析：本题考查时态。根据listen，可知用现在进行时。句意：听！小鸟正在树上唱歌。
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