Question

I’ve been working for over twenty years and seldom ________ so tired as now．

A. I have felt
B. I had felt
C. have I felt
D. had I felt

Answer 1

答案C
句意：我一直工作了20多年，但很少觉得像现在这样累。首先要判断此句要用现在完成时表示“到现在为止”；seldom放在了第二个分句的句首，要用部分倒装。