B) 根据句意填入单词（共10个空格；每空格1分，满分10分）
81. Sorry to i           you but can you tell me the time?
82. We can all leave together — a          that the others aren’t late.
83. We don’t know whether the necklace was well _________ (保存) .
84. The students __________ (鼓掌欢迎) the boy student’s brilliant answer in my class the other day.
85. Can you __________ (加速) your walk to the office?
86. I didn’t recognize him because he was in d________.
87. I’m not familiar with that guy and I just have a nodding         (acquaint) with him.
88. Professor Higgins believed that “People b_______ their status every time they open their mouths”
89. No team which entered the final games of the World Cup should be __________ (低估).
90. His excuse for his absence from the meeting is _________ (accept) because there is no sign of traffic jams today.