11. __ , the boss makes everybody in the office work late on the job if it is overdue. A)Whether the staff has to do overtime or not BY You don't have to leave the office so late today As we are not to be paid more than our salaries (D) If there had to be some extra work to do E) You had better not leave so late

The correct answer is A) Whether the staff has to do overtime or not.<br /><br />In this sentence, the blank is referring to the condition or situation under which the boss makes everyone in the office work late. Option A, "Whether the staff has to do overtime or not," fits this context perfectly as it describes a condition that could lead to working late. The other options do not appropriately fit the context of the sentence.