Once ______ , the plan can’t be changed.A.beginB.beginningC.beganD.begun

Once ______ , the plan can’t be changed.A.beginB.beginningC.beganD.begun

题型:不详难度:来源:

Once ______ , the plan can’t be changed.
A.beginB.beginningC.beganD.begun

答案
D
解析
考查非谓语动词。Begin与the plan为动宾关系所以用过去分词做状语。句意:一旦开始这项计划不能再做改变。
举一反三

He observed a stranger _______ around the store at 12 p.m. last night.
A.to hangB.hangC.hangingD.to be hanging

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Some people don’t like classic novels. They think they have nothing __ with life today.
A.to doB.doneC.doD.did

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That day he acted on the stage, __ Hamlet.
A.starredB.starringC.to starD.star

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. He has promised __ her to choose her own husband.
A.to allowB.allowingC.allowedD.to be allowed

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twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
A.ExaminingB.ExaminedC.Being examinedD.Having been examined

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