21. The person _____ you were talking to was an American.

　　A. who B. whom

　　C. which D. as

　　22. All _____ is a continuous supply of the basic necessities of life.

　　A. what is needed B. that is needed

　　C. for our needs D. thing needed

　　23. The goals _____ he had fought all his life no longer seemed important to him.

　　A. for that B. for which

　　C. for what D. of them

　　24. Snowdonia is a seashore city _____ you can enjoy yourselves much by visiting the local scenic spots.

　　A. why B. which

　　C. where D. so

　　25. The inflation made it hard for us to buy the necessities ____.

　　A. which need us B. that we need

　　C. what we need D. as we need

　　26. Those were the soldiers _____ to save the town.

　　A. whose responsibility was B. in whom there was a responsibility

　　C. whose was the responsibility D. from whom the responsibility

　　27. It won‘t be long _____ the modern communications spread over all the villages in china.

　　A. when B. before

　　C. until D. as

　　28. The fact _____ doctors recommend that children with hypertension(过度紧张)drink coffee is surprising.

　　A. what B. is that

　　C. that D. of

　　29. I can never forget the day _____ I first came to college.

　　A. when B. in which

　　C. at which D. which

　　30. I can never forget the day _____ we spent together.

　　A. when B. in which

　　C. at which D. which

　　31. The reason _____ he failed the exam was _____ he had not worked hard.

　　A. why……if B. why……that

　　C. that……why D. why……what

　　32. When you called me this morning， I _____ the newspaper.

　　A. read B. was reading

　　C. reads D. have read

　　33. _____ to get there on time， we walked as fast as we could.

　　A. hoping B. to hope

　　C. hoped D. being hoped

　　34. Walking along the river， he heard someone _____ for help.

　　A. shouting B. shout

　　C. shouted D. having shouted

　　35. _____ into many languages， the book is well known to all.

　　A. Being translated B. Having been translated

　　C. to be translated D. Having been translated

　　36. Most of the people _____ to her party were her old friends.

　　A. Invited B. to invited

　　C. being invited D. inviting

　　37. _____ from the moon， the earth with water _____ seventy percent of its surface.

　　A. See/covered B. Seeing/covering

　　C. Seen/covering D. To see/to cover

　　38. _____ I saw was two men crossing the street.

　　A. What B. Whom

　　C. Who D. That

　　39. The time will come _____ man can fly to outer space freely.

　　A. that B. when

　　C. in that D. what 40. Before her marriage， she spent a considerable time in that very part of Shanghai，_____ she belonged.

　　A. which B. to where

　　C. to which D. at which