Today is a fine day and I will go on a trip to the countryside for the fresh air. Have fun

问题补充：

Today is a fine day,and I will go on a trip to the countryside for the fresh air.

Have fun_, andyesterday.

A. so it was.

B. so was it

C. it was so.

D. it was

答案：

A. so it was.

(答案→)B. so was it

C. it was so.

D. it was

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