【题目】Please call my secretary to arrange a meeting this afternoon，or____________ it is convenient to you.
A.whereverB.however
C.whicheverD.whenever
在线课程【答案】D
【解析】
考查状语从句。A. wherever无论何地; B. however无论如何；C. whichever无论哪一个；D. whenever任何时候。有前面的this afternoon可知，此处whenever引导状语从句,故选D。