By the time he leaves university his parents (spend)（）more than 10, 000 dollars on his education.

填空题My English teacher noticed some (improve)（）in my pronunciation after I had practiced.

单项选择题What does the man mean（）

A．His back hurt during the meeting.
B．He agreed that it was a good meeting.
C．The plan should be sent back.
D．Her support would have helped this morning.