1 . Mr. Smith was made ____ his teaching because of his poor health.

A．give up

B．giving up

C．to give up

D．to giving up

2 . Columbus was the first ____the New Continent.

A．discovered

B．discovering

C．to discover

D．having discovered

3 . The problem ____ at the meeting now is to be settled next week.

A．being discussed

B．discussed

C．to be discussed

D．discussing

5 . He was born in ____ is now known as Kaifeng.

A．what

B．that

C．where

D．which

6 . Do you still remember the days ____we spent together in America?

A．when

B．during which

C．which

D．on which

7 . He must be from Africa, ____ can be seen from his skin.

A．that

B．which

C．it

D．what

8 . About a dozen students in our school ____abroad to study medicine last year.

A．sent

B．were sent

C．has been sent

D．has sent

9 . How can a country where teachers devote all their class hours to training students to take exams ________ to compete in the technology race with other countries?

A．be expected

B．to be expected

C．expecting

D．expected

10 . Unless _________ to speak, you should remain silent at the conference, or you will be expelled.

A．inviting	B．having been invited
C．to invite	D．invited