单项选择题

If only we ______ then, the disease was curable.

A. knew

B. could know
C. had known

D. would have known
<上一题 目录 下一题>
热门 试题

单项选择题
Yesterday evening I came across the man ______ you think is pleased to ______
A. who ... talk

B. whorn ... get along with
C. who ... work with

D. whom ... be talked with
单项选择题
-- Are you a teacher -- I______, but now I am working in a company.
A. is
B. am
C. was
D. had
相关试题