I have an appointment  ________  Dr. Smith, but I need to change it.

A．to	B．off
C．with	D．from

【小题1】I ____________________________________________ her getting on the bus when I came out of the bookstore.
我从书店出来时看见她上了公共汽车。
【小题2】Jane’s mother has just _______________________________________ twins.
简的妈妈刚刚生了一对双胞胎。
【小题3】You have to _________________________ losing such a large sum of money.
丢了这么一大笔钱，你务必解释清楚。
【小题4】Why are you _________________________ the girl? You are making her more and more nervous.
你为什么盯着那女孩看？你让她越来越紧张了。
【小题5】We _____________________________________ when listening to her song.
我们屏息听她唱歌。
【小题6】The workers are doing all they can to _________________________ the accident rate.
工人们正在尽一切努力降低事故率。
【小题7】_________________________ risk breaking up his marriage he told his wife everything.
他唯恐婚姻破裂，把一切都告诉了妻子。
【小题8】He is not selfish; _____________________________________, he is very noble and generous.
他并不自私，恰恰相反，他是一个非常高尚而又慷慨的人。

All the students in our class made _______ progress by studying harder this term. 

A．a

B．great

C．a great

D．不填

The Australian boy has a good ________ of Chinese and can communicate with others freely.

A．request

B．command

C．accent

D．usage