单项选择题

A．because
B．and
C．with
D．provided
<上一题 目录 下一题>
热门 试题

单项选择题
A．be taking placeB．take placeC．be taken placeD．have taken place
A．be taking place
B．take place
C．be taken place
D．have taken place
单项选择题
A．whenB．whileC．sinceD．then
A．when
B．while
C．since
D．then
相关试题