单项选择题

__________ his work, he would do it till it was finished.

A．Once Charles would start
B．Once Charles started
C．Since Charles would start
D．Since Charles started
<上一题 目录 下一题>
热门 试题

单项选择题
Will you join me in a walk I'll __________.
A．glad
B．be glad
C．be glad to
D．glad to
单项选择题
He __________ his homework when his mother came back yesterday evening.
A．was doing
B．is doing
C．did
D．does
相关试题