单项选择题


A．when
B．until
C．since
D．while
<上一题 目录 下一题>
热门 试题

单项选择题
Good-bye, Mr. Smith. I'm very pleased _________.
A．to meet you
B．to have met you
C．meeting
D．having met you
单项选择题
After watching him closely, the doctors came to believe that Jerry Page _________.
A．needed some kind of sleep
B．was too old to need any sleep
C．needed no sleep at all
D．often slept in chair
相关试题