28.We often hear him English songs. A. to sing B. sing C. singing D. to be singing 查看更多

 

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We often hear him ________ English songs.

A. to sing

B. sing

C. singing

D. to be singing

 

查看答案和解析>>

We often hear him ________ English songs.

A. to sing

B. sing

C. singing

D. to be singing

 

查看答案和解析>>


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