填空題

The room is in a terrible mess; it （）（肯定沒(méi)打掃過(guò)）.

答案： can’t have been cleaned

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If this can’t be settled reasonably, it may be necessary to（）(訴助武力).

答案： resort to force

Mark often（）(試圖逃脫罰款) whenever he breaks traffic regulations.

答案： attempts to escape being fined

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