__________ the program , they have to stay there for another two weeks.

A. Not completing B. Not having completed

C. Not completed D. Having not completed

 

B

【解析】

試題分析：考查現(xiàn)在分詞的否定式，they和complete是主動(dòng)關(guān)系，用現(xiàn)在分詞做狀語，not應(yīng)放在doing/having done前，句意：沒有完成計(jì)劃，我們不得不再待兩個(gè)星期。故選B。

考點(diǎn)：考查現(xiàn)在分詞的否定式

 

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