86. A) from

　　翻译

　　87. take people's sleep quality into account

　　88. the field (where) we can cooperate / the field in which we can cooperate

　　89. decided to quit the match

　　90. contact us at the following address

　　91. if it is convenient for you / at your convenience

作文：

　　Welcome to English Club! It could serve as a platform to show your outstanding abilities and help you develop a range of great skills.

　　You can be involved in a variety of activities including staging musical dramas, holding group discussions and watching Oscar-winning movies. These extra-curricular activities could offer you ample opportunities. First, your active participation is helpful to strengthen the sense of responsibility and managing interpersonal relations. Second, various activities organized by us could raise your level of proficiency in English. A good command of English empowers you to enjoy decided competitive edge over your peers.

　　You can file a written application to our staff office or email us via . The deadline for entries is Sept. 25th. Come on, join us now!