The two ladies burst into laughter from time to time as if _______ something funny.
A. to talk about
B. to chat
C. talking about
D. chatting with
The two ladies burst into laughter from time to time as if _______ something funny.
A. to talk about
B. to chat
C. talking about
D. chatting with
解析：选C。考查状语从句的省略。句意为：这两位女士不时发出笑声，似乎正在谈什么可笑的事情。as if后接现在分词；talking about表示“正在谈论……”；而as if后接to do表示“将要做……”。而D项搭配不对。