—HowlonghasJimbeeninthefactory?—Hehasbeentherefortwoyea...

问题详情：

—How long has Jim been in the factory?

—He has been there for two years             he left school.

A. when                        B. since                         C. as soon as              D. while

【回答】

B

知识点：连词

题型：选择题