Question

______ he does his work,I don't mind what time he arrives at the office．

1. A.
   So far as
2. B.
   So long as
3. C.
   In case
4. D.
   Meanwhile

Answer 1

B
从上下文看，本句是一个含条件状语从句的复合句。在供选择的答案中，A、B项都能引导条件状语从句，但so far as表示“就……说、在……范围内”，用于此处不合句意。