1 . What students do at college seems to matter much more than ________ they go. （用适当的词填空）

2 . When I try to understand _____prevents so many Americans from being as happy as one might expect, it seems to me that there are two causes.

A．what it is that

B．that it is what

C．it is what

D．what is it that

4 . Over thousands of years，they began to depend less on ________ could be hunted or gathered from the wild, and more on animals they had raised and crops they had sown. (用适当的词填空)

5 . I want to know ______ she is going to see a film.

A．if

B．that

C．what

D．which

6 . __________ has recently been done to provide more buses for people, a shortage of public vehicles remains a serious problem.

A．That

B．What

C．Though what

D．In spite of what

7 . The student completed this experiment to make come true ________ Professor Joseph had said. (用适当的词填空)

8 . It is said that the famous football star is willing to play for ________ would pay him three million dollars a year.   (用适当的词填空)

9 . It is unwise to give the children ____________ they want. (用适当的词填空)

10 . It is not always easy for the public to see_____________ use a new invention can be of to human life. （用适当的词填空）