问题
选择题
What impresses me most is ______ he appears in front of others, he wears a sincere and charming smile．
A．which B．that C．where D that whenever
答案
答案：D
本题结合名词性从句里的表语从句来考查时间状语从句，that引导的表语从句里含到了一个whenever引导的时间状语从句。句意为“他给我印象最深的就是无论何时他在人面前都面带真诚友好的笑容”。