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9．-The hall___ for international conferences is of great importance．
-I see，and we are sure to complete it on time．（　　）
A．builtB．to be built
C．having been builtD．building

分析 -為國(guó)際會(huì)議建造的大廳非常重要．-我知道，我們保證按時(shí)完工．

解答 答案：B 句中build修飾名詞hall，兩者構(gòu)成動(dòng)賓關(guān)系，要用被動(dòng)；句意表達(dá)build的動(dòng)作還未完成，不能用過去分詞，過去分詞表示被動(dòng)完成的動(dòng)作．故選B．

點(diǎn)評(píng) 動(dòng)詞不定式是非謂語(yǔ)動(dòng)詞是一種，表示未發(fā)生的動(dòng)作，用法較多．常用來作定語(yǔ)，主語(yǔ)，賓語(yǔ)，補(bǔ)語(yǔ)，狀語(yǔ)等．本題中用來作后置定語(yǔ)．

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