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  • His father began to work____he was seventeen years old.A as old as B as early as B since D while

    His father began to work____he was seventeen years old.A as old as B as early as B since D while
    選什么?為什么?
    英語人氣:565 ℃時間:2019-12-20 20:00:43
    優(yōu)質解答
    while (==when )是正確的選擇.A as old as 的后面不能加句子B as early as的后面不能加句子B since 的主句必須是現(xiàn)在完成時D while (== when) 作為連接詞,后面的句子謂語動詞可以是be動詞.又如:-------- He came un...
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