By the time I swa the angry expression on his face, I exactly what I was having to face. But not for a moment I should quit.
A. had known; I thought
B. have known; had I thought
C. would know; I would think
D. knew; did I think
网友回答
A. had known; I thought
B. have known; had I thought
C. would know; I would think
(答案→)D. knew; did I think
解析：考查时态。尽管句中有by the time引导的时间状语从句，但主句谓语所表达的动作不是发生在从句谓语所表示的动作之前，而是几乎同时发生，所以用一般过去时。By the time此处近乎于at the time之意。此题易误选A。