By the end of last year,I ____ (be) to the West Hill Farm three t_英语解答

By the end of last year,I ____ (be) to the West Hill Farm three times.

人气：317 ℃　时间：2020-04-15 12:43:18

解答

填 had been 过去完成时
截止到去年年底,我已经去过西山农场三次了.

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