Question

【题目】The directors have a meeting every Friday ______ there is nothing to discuss.

A. unless B. because

C. when D. if

Answer 1

【答案】A

【解析】句意：董事会每周五开会，除非无事讨论。A. unless 除非，如果不；B. because因为；C. when 当……时候；D. if如果。根据句意可知，答案为A。