单项选择题

They didn't stop talking ______ their teacher came back.

A． until
B． while
C． as soon as
<上一题 目录 下一题>
热门 试题

单项选择题
Mr. Wang isn't at home. He ______ there already.
A． has gone
B． has been in
C． has gone to
单项选择题
He is very rich, ______ he is unhappy.
A． and
B． but
C． or
相关试题