91. The leaflet says that a ( n) _____ adult requires $ 500 to cover the cost of accommodation, transport and other items.

A. single 　　　　　　　　　　B. only

C. independent 　　　　　　　D. unique

90. It was in the 1920s that Albert Einstein himself as a great scientist in the world.

A. errected 　　　　　　　　B. recognized

C. admitted 　　　　　　　　D. established

89. Some customers complain that it usually ___________ so long to get refund for the inferior goods they bought.

A. costs 　　　　　　　　　B. takes

C. spends 　　　　　　　　　D. spares

88. “1 don’t think it’s my __________ that the window has been broken. I just played football with my friends and John kicked the ball forwards the window.” said the boy.

A. error 　　　　　　　　　B. mistake

C. fault 　　　　　　　　　D. duty

87. My grandma is as ____________ as a youth and takes an active part in different social activities.

A. enthusiastic 　　　　　　　B. energetic

C. talkative 　　　　　　　　D. sensitive

86. Broadly speaking, I would agree with Ammie, though not __________.

A. widely 　　　　　　　　　B. thoroughly

C. entirely 　　　　　　　　　D. extensively

85. That small plastics factory is planning a joint __________ with an American company.

A. adventure 　　　　　　　　B. expectation

C. venture 　　　　　　　　　D. event

84. Every Saturday morning we can see that old woman __________ shopping.

A. loaded with 　　　　　　　　B. stocked with

C. equipped with 　　　　　　　D. dealt with

83. The boy’s measles (J) soon ___________ to other children.

A. grew 　　　　　　　　　　B. spread

C. carried 　　　　　　　　　D. developed

82. According to the recent research, hamburger eating and weight gaining is not necessarily__________ and effect.

A. reason 　　　　　　　　　　B. cause

C. fact 　　　　　　　　　　　D. influence