20．The black teacher set a good example _____ all the rest of the group, ____　 　all peace-loving people.

A．for; who are　 B．for; which was　 C．to ; which are　 D．to; who are

19．Finally they arrived at a place ________ sold cigarettes and other small articles.

　　 A．where　 　　　B．which　 　　　C．in which　 　　D．what

18．When _______ America and Britain, this famous writer said that the same language _____ the two people. A. talking of; separates　　　　　　B. talked of; separated　　

C. talking; separates　　　　　　　 D. talks; separates

17．All the elder people ______ at the party were those _____involved in (参与)community service.

A．thankful; honestly　　　　 B．interested; eagerly　　　　

C．present; actively　　　　　 D．important; patiently

16．In the past, ice used to ______ used to ______ the air in a room.

A．be ;cooling　　　 B．be; cool　　 C．being; cool　　　 D．being; cooling

15．The old man’s _______ pity on the snake led to his own death.

　　 A．take　　　　 B．taking　　　　　 C．being taken　　　　 D．have

14．________ many times, but he still could not understand it.

　A．Having been told　　　 B．Tough he had been told　　　　　

C．He was told　　　　　 D．Having told

13．Faced with a bill for $ 10,000,_________.

　　 A．John had to take an extra job　　　 B．the boss has given John an extra job

　　 C．an extra job has been taken　　　　 D．an extra job has been given to John

12．-----My room gets very cold at night.

　　 -----_________________.

　 A．So is mine　　　　 B．So mine is　　　 C．So does mine　 D．So mine does

11．At the end of the meeting, it was announced that an agreement ________.

　　 A．has been reached　　　 B．had been reached　　 C．has made　　 D．signed