问题
选择题
She was leaning against a tree as if ______ for someone.
A.waited
B.wait
C.to wait
D.waiting
答案
答案:D
考查状语从句的省略。当状语从句的主语和主句主语一致,并且含有系动词be时,可以把状语从句的主语和be动词省略。本句补充完整应是She was leaning against a tree as if she was waiting for someone.所以选D。