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How long () at this job 怎么填

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/06/16 04:55:45
How long () at this job 怎么填
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
请问选哪个 请详细解答下为什么选那个 不能选其他的?
/>How long have you been employed at this job?
Since 1990.
回答里有since,前面就用have+过去分词;由于是被雇佣,所以用表被动的 have been employed