單詞填空問題.Is this your first time that you ___ (fly)?
單詞填空問題.Is this your first time that you ___ (fly)?
英語人氣:149 ℃時間:2020-03-25 18:53:32
優(yōu)質(zhì)解答
have flown.為什么填這個?這是你第一次飛行。是指從過去到現(xiàn)在第一次飛行,即從過去開始一直到現(xiàn)在,還有可能繼續(xù)下去,用現(xiàn)在完成時。
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