it is to jump into the water in hot summer!A. What funB. How funnyC. What a funD. How fun

问题补充：

it is to jump into the water in hot summer!

A. What fun

B. How funny

C. What a fun

D. How fun

答案：

(答案→)A. What fun

B. How funny

C. What a fun

D. How fun

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