John and Mary-----each other pretty well before they got mar

学习 时间:2026-08-23 08:15:40 阅读:3129
John and Mary_____each other pretty well before they got married.A.knew B.know C.had known D.have known

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2026-08-23 08:15:40

c
before前面一般用完成时,因为后面是过去式,所以用过去完成时

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