-What are you doing? - . A. I sing B. I’m singing C. I can sing 答案:B 解析:用现在进行时问.就要用现在进行时答. 查看更多

 

题目列表(包括答案和解析)

—What are you doing?
—__________.
[     ]
A. I sing
B. I'm singing
C. I can sing

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-What are you doing?

-________

[  ]

A.

I sing

B.

I'm singing

C.

I can sing

查看答案和解析>>


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