The little boy burst.A. out cryB. into being cryC. out cryingD. into crying

问题补充：

The little boy burst.

A. out cry

B. into being cry

C. out crying

D. into crying

答案：

A. out cry

B. into being cry

(答案→)C. out crying

D. into crying

解析：本题的含义是小男孩突然哭起来了，burst out doing表示突然做某事，故本题选C。