21.—It is raining cats and dogs.22.　—..23.A. So it is　　B. So is itC. Neither it isD. Neith

问题补充：

21.—It is raining cats and dogs.

22.—..

23.

A. So it is

B. So is it

C. Neither it is

D. Neither is it

答案：

(答案→)A. So it is

B. So is it

C. Neither it is

D. Neither is it

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