B. tip

C. fare

D. cost

32.He was _______ the preparation of an international conference when

I arrived in Beijing.

( D )

A. engaged to

B. engaged for

C. engaged on

D. engaged in

33.I am pleased to take _______ to exchange views with you.

( A )

A. this opportunity

B. a chance

C. this time

D. a period

34.In those days, the Portuguese (葡萄牙人) were trying to reach India

by sailing round Africa, but Columbus _______ prove that India could be reached by sailing west.

( C )

A. was determined in

B. determined

C. was determined to

D. determined in

35.Wang Li’s father has taught English here since he graduated from

Peking University.

( C )