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  • 1.you mustn't ( ) (cross) the road now.2.look!what are they ( ) (do) now.

    1.you mustn't ( ) (cross) the road now.2.look!what are they ( ) (do) now.
    英語(yǔ)人氣:622 ℃時(shí)間:2019-11-24 18:15:37
    優(yōu)質(zhì)解答
    cross must是情態(tài)動(dòng)詞,所以后面跟動(dòng)詞原形
    doing現(xiàn)在進(jìn)行時(shí),be doing
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