单选题 We should be able to do the job for you quickly, ______ you give us all the necessary information.
A. in case B. provided that
C. or else D. as if

【正确答案】 B

【答案解析】provided that“只要”，引导条件状语从句，有时也作providing that, that可以省略。in case“万一”；or else“否则的话”；as if“好像，似乎，仿佛”，引导方式状语从句。根据题句前后两部分的逻辑关系，应选provided that。