问题
选择题
—How long _______ at this job?
—Since 1990.
A.were you employed
B.have you been employed
C.had you been employed
D.will you be employed
答案
答案:B
选择B。这道题根据答语可知选择现在完成时态,同时主语 you和动词employ属于被动关系,因此该题考察现在完成时态的被动语态。