53. Is oxygen the only gas _______ helps fire burn ?

A. that　　 B　 x　　 C. which　　 D. it

52. I still remember the day _____ she first wore that pink dress.

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

51.I’ll tell you _______ he told me last month.

　 A. all which　　 B. all what　 C. that all　 D. all

50. Is _______ some German friends visited last week ?

A. this school　 B. this the school　 C. this school one　 D. this school where

49. This is one of the best films ________ this year.

A. have been shown　　　　 B. that have shown

C. that have been shown　　 D. which has been shown

48. Do you know the man _________?

A. whom I spoke　 B. to who I spoke　 C. I spoke to　　 D. that I spoke

47. There are two thousand students in our school, ________ are girls.

A. of whom two-thirds　　 B. two-third of them

C. two-third in them　　　 D. two-thirds in which

46.I have bought two ballpens, ______writes well.

A. none of which　 B. neither of which　 C. none of them　 D. neither of them

45._______ has been said above, grammar is a set of dead rules.

A. Which　 B. What　 C. That　 D. As

44.John got beaten in the game, ______ had been expected.

A. as　 B. that　 C. what　 D. who