91. We must live up to _____ have been expected of ourselves.

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

90.　Try to guess which _____ the horse _____ to me?

A. is, belongs　　 B. does, belong C. is, belonging D. is, belonged

89. Chicago lies ____ the two rail roads are connected

　　 A. where B. wherever C. in the place　 D. in which

88. The oil must have been used up, _____ the light went out.

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

87. It is only when you lose something _____ how much you value it.

　　 A. then you will realize　　 B. do you realize

　　 C.that you will realize　　 D. which you will realize

86. A new policy formulated, _____.

　　 A. thus did the economic reform begin

　　 B. thus began the economic reform

　　 C. thus had the new economic reform began

　　 D.　began the economic reform thus

85. _____ this something, still unseen, they gave the name radium.

　　 A. With　 B. By　　 C. At D. To

84. Look out! The ceiling _____ l down.

　　 A. is to fall　 B. will fall　　 C. is going to fall　 D. is falling

83. Intelligence is to some extent _____ one is born with

　　 A. that　　 B. of which C. something　　 D. which

82. The parking meters are installed in streets to record and show the time _____ a driver

　　 has paid for is finished

　　 A. when B. if　 C. after　 D.that