90. 　 It’s a wonderful place for anyone ______ in architecture, as you are.

A. interesting　　 B. to be interested　　 C. being interested　　 D. interested

89. 　 In China hundreds of different dialects are spoken; people of some villages ______ themselves understood by the inhabitants of the next town.

A. making trouble have　　 B. have making trouble

C. have trouble making　　 D. trouble making have

88. 　 When the famous pianist was a child, he was accustomed ______ for several hours a day.

A. to practicing　　 B. to practice　　 C. to be practicing　　 D. to have practiced.

87. 　 The chairman insists that there be a meeting _______ within the shortest possible time.

A. to hold　　 B. to be held　　 C. to have been held　　 D. to be holding

86. 　 It’s no use ______ me not to worry.

A. you tell　　 B. your telling　 C. for you to have told　　 D. having told

85. 　 Stan spent half a year ______ material for his new book.

A. to collect　　 B. collect　　 C. collecting　　 D. collected

84. 　 There’s one thing I dislike about him: he will never admit ______ a mistake.

A. having made　 　B. making　　 C. being made　　 D. have been made

83. 　 Some passengers are reading the morning paper, others are talking with one another, ______ nervously for the train.

A. to wait　　 B. are waiting　　 C. waiting　　 D. being waited

82. 　 ______ halfway through the exercise, the teacher changed his mind and collected all our papers.

A. When only being　　 B. When we were only

C. Being only　　　　 D. Having been

81. 　 Here we found little snow, as most of it seemed ______ blown off the mountain.

A. to have been　　 B. that it was　　 C. to be　　 D. that it had been