59. I think our boat can pass the treacherous water ______ cautiously handled.

A. until　 　　　　 B. if　　　　　　　 C. lest　　　　　　　　　　　　　 D. with

58. The engineers are going on with their highway project, _____the expenses have risen.

A. even though　　 B. just because　　　 C. now that　　　　　 D. as though

57.　 The fuel must have been finished, ____ the engine stopped.

A. since　　 　　 B. as　　　　　　　　　 C. because　　　　　　　　　　 D. for

56. The washing machine ___ last Wednesday works well.

A. I bought　 B.I bought it　　 C. which I buy　　　　 D. that I bought it

55. Mayor will make an inspection of our school on Monday, ___ you can tell him how hard the situation we are in.

A. where　　　　 B. which　　　　　　　 C. when　　　　　　 D. that

54. The people ___ in the paper did not like it, but other reader liked it very much.

A. who was written　　　　　 　　　　　　 B. who were written　　

C. who were written about　　 　　　　　　 D. whom were written about

53. Matter is anything____

A. that take up space and have weight　　 B. which take up space and have weight

C. that takes up space and has weight　　 D. those take up space and have weight

52. She wrote a letter to her father, ___ she made her secret known.

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

51. The factory ___ I am going to is the place ___ my mother used to work many years ago.

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

50. The last river __　　 _ they crossed is two miles wide.

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