When shall we start the restoration of the historic buildings?一Not until our plan________ by the committee.A.will be approved B.approvesC.is to approve D.has been approved答案是D为什么不是A?

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When shall we start the restoration of the historic buildings?一Not until our plan________ by the committee.A.will be approved B.approvesC.is to approve D.has been approved答案是D为什么不是A?
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When shall we start the restoration of the historic buildings?一Not until our plan________ by the committee.A.will be approved B.approvesC.is to approve D.has been approved答案是D为什么不是A?
When shall we start the restoration of the historic buildings?
一Not until our plan________ by the committee.
A.will be approved B.approves
C.is to approve D.has been approved
答案是D为什么不是A?

When shall we start the restoration of the historic buildings?一Not until our plan________ by the committee.A.will be approved B.approvesC.is to approve D.has been approved答案是D为什么不是A?
像这种对话类型的题目一定要根据上下文来答题.上句说历史建筑的重建什么时候开始,
那么回来应该是说到目前为止,我们的这项计划还没有得到委员会的同意.这样才语义通顺呀.如果用A,暂且不说语法方面,意思就说不通,不是吗?

直到计划通过，是完成的状态，从句中可用完成时表将来完成时

When shall we start airing our winter clothes.When shall we start airing our winter clothes. I don’t know when we shall start the work. I think it will be very in-teresting.When shall we start and _____shall we meet? We don`t know when we shall start .(改为to do 的结构） We don`t know when ____ _____.说出语法！to start When.shall.we.go. let's ()(start) our lesson ,shall we Shall we start to work?同义句 --When shall we start the restoration of the historic buildings?一Not until our plan________ by th I don't know when we shall start.(改为简单句) I don't know ____ ____ ____. When shall we go?翻译 英语翻译when shall we meet? When shall we ( ) ? ( ) 里应添什么? When shall we meet tomorror? Let's start our work at nine tomorrow morning(划线部分在at nine tomorrow morning)用when shall we 还是when let we? shall we start the work from the beginning againno,Let's pick up ------ we left offA.what B.where C.how D.when Shall we start to have our class可以吗 It____(get)colder and colder .Shall we start a fire? when are we going to start?