答案與解析:
87. take people’s sleeping quality into account / take people’s sleeping quality into consideration
解析:考點是詞組take sth into account\consideration.
88. the field (where) we can cooperate
解析:考點是定語從句。
89. decided to quit the match
解析:考點是詞組decide to do sth.
90. contact us at the following address
解析:考點是詞組contact sb at some address.
91. if you are convenient
解析:考點是條件狀語從句。