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拍照上传机械搅拌使反应器的结构图

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Mrs. White ___ a pair of red shoes.

A. is
B. have
C. has

Do you like the grey shirt? No, I ___ .

A. am
B. do
C.don’t.

The children ___ wearing yellow shoes.

A.am
B. is
C. are

How much ___ the trousers?

A. are
B. is
C. be