Question

【题目】We are going to the theater tomorrow ______ all the tickets are sold out.

A. when B. unless

C. whether D. because

Answer 1

【答案】D

【解析】句意：因为票都卖光了，我们明天去看剧吧。When当……时候；unless除非；whether不管；because因为。根据主从句之间的关系判断。故选D。