It has been proved that his theory is practical 怎么變?yōu)?His theory has been proved ( )
It has been proved that his theory is practical 怎么變?yōu)?His theory has been proved ( )
如題
如題
英語人氣:939 ℃時間:2020-01-30 03:24:36
優(yōu)質(zhì)解答
to be practicalpractical 不是形容詞嗎?那不用改為ed形式?to be practical 就對了。不是verb,不用加ed的哦。
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