21. We all know the truth ____ where there is water, there is life.

　　A. which B. that C. x D. wherever

　　22. It is such a modern machine ____ few of the workers know how to operate it.

　　A. which B. that C. as D. the one

　　23. It is such a modern machine ____ few of the workers know how to operate.

　　A. which B. that C. as D. the one

　　24. Was it October 1, 1949 ____ the People’s Republic of China was founded?

　　A. in which B. on that C. that D. when

　　25. ____ he said so surprised everyone.

　　A. What B. That C. Which D. D&C

　　26. Which material will be thrown into the sea ____ on its nature?

　　A. depends B. depending C. according D. according to

　　27. Which material will be thrown into the sea ____ on its nature.

　　A. depends B. depending C. according D. according to

　　28. This is the only English-Chinese dictionary ____ I have.

　　A. what B. that C. which D. B&C

　　29. ____ is known to us all, he got an excellent degree in the test.

　　A. It B. What C. As D. That

　　30. ____ is known to us all is that he got an excellent degree in the test.

　　A. It B. What C. As D. That

　　31. ____ is known to us all that he got an excellent degree in the test.

　　A. It B. What C. As D. That

　　32. The class went on with the story ____ they had left it before the holiday.

　　A. that B. which C, where D. in which

　　33. ____ he couldn’t understand was -___, as a teacher of Chinese, he was asked to teach history.

　　A. What; that B. What; what C. What; which D. Why; how

　　34. ____ fashion differs from country to country may reflect the cultural differences from one aspect.

　　A. What B. Which C. Where D. That

　　35. Do you still remember the days ____ we spend in the countryside ten years ago?

　　A. when B. because C. that D. if