问题
单项选择题
—How is he getting on with his job hunt
—tte was looking for a suitable job all the time,______he has failed.
A. when
B. however
C. yet
D. since
答案
参考答案：C
解析： 前后两应该构成转折关系，故选yet。however为副词，只能在句子中作状语，不能引导两个并列的句子或从句。A、D明显不合题意。