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——Have you known each other for long?
——Not very long,_____ we started to work in this company.
A.since
B.before
C.when
D.after
选哪个?为什么?
人气:484 ℃ 时间:2019-10-24 13:43:36
解答
A
问句是完成时,since是"自从.."的意思.
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