Whenever I met her was fairly often she greeted me with a sweet smile.A. whoB. thatC. whe

问题补充：

Whenever I met her,was fairly often, she greeted me with a sweet smile.

A. who

B. that

C. when

D. which

答案：

A. who

B. that

C. when

(答案→)D. which

解析：句意：无论何时我见到她，她总是笑脸相迎。本题中which引导非限制性定语从句，所指代的内容是she greeted me with a sweet smile.整个这件事情。故选D.