单项选择题

______ you had been here, we wouldn’t have had so much trouble then.

A. When
B. If
C. As
D. Since
<上一题 目录 下一题>
热门 试题

单项选择题
James Joyce was a painstaking writer; ______ he once spent half a day on the composition of a single sentence.
A. moreover
B. for example
C. nevertheless
D. on the other hand
单项选择题
______ he did well at chess, he was rather weak in math.
A. As
B. When
C. While
D. If
相关试题