it is to have a picnic in the hills on such a nice day!A. What a funB. How funC. What fun

问题补充：

it is to have a picnic in the hills on such a nice day!

A. What a fun

B. How fun

C. What fun

D. How a fun

答案：

A. What a fun

B. How fun

(答案→)C. What fun

D. How a fun

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