—Why did you go back to the shop—I left my friend （） there.

单项选择题—Do you have the experience like that—Well, I've done the work before, so I know what （） in my new job here.

A．expected
B．expecting
C．to expect
D．to be expecting

单项选择题—Did Jack come back early last night—Yes. It was not yet eight o'clock （） he arrived home.

A．before
B．when
C．that
D．until