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【英语】有关非谓语动词的题,1.( ) the project in time,staff were working at weekends.A.Completing B.Having completed C.To have completed D.To complete为什么不选C,而选D?请详解.给我讲讲非谓语动词吧,我这一块很不明
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时间:2024/08/18 01:07:53
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