While us her experience in Africa, she couldn’t help crying.
A. told
B. to tell
C. is telling
D. telling
网友回答
A. told
B. to tell
C. is telling
(答案→)D. telling
解析:考察状语从句的省略。本句在while后面省略了she was,句意:当她在告诉我们在非洲的经历的时候,情不自禁地哭了。当状语从句的主语和主句的主语一致,且含有be动词的时候,可以把状语从句的主语和be动词一起省略。故D正确。