Question

Jane told me she would not attend the conference ________.

A. if he invited     B. when inviting   C. unless invited    D. while inviting

Answer 1

C

解析：选项为省略句，当when, while, until, if, unless等连词引导的状语从句的主语与主句的主语相同，从句的主语及部分谓语（be动词）可省略。unless invited =unless she was invited。又如： When asked about his discovery, Sir Alexander Fleming said: “One sometimes finds what one is not looking for.”