问题
选择题
She is upset today, and I want to do I can to cheer her up.
A．whichever
B．however
C．whatever
D．whenever
答案
答案：C
题目分析:句意：她今天有点沮丧，我想尽力去让她高兴起来。A无论哪个；B无论如何；C无论什么；D无论何时。此处是个宾语从句，从句中省略了动词do，而句中缺少宾语从句中的宾语，排除B、D选项；而whichever需要有选择范围，故答案选C。