-Lucy won the first prize in this competition．
-Really？She a lot of effort into it． （ ?。?/h1>
【考點】must have done的用法．
【答案】A
【解答】
【點評】
聲明：本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有，未經(jīng)書面同意，不得復(fù)制發(fā)布。
發(fā)布：2024/5/27 14:0:0組卷：12引用：1難度：0.9
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