( )smoke so much?I just don't know how you...下列选项哪个正确,为什么?( )smoke so much?I just don't know how you ( ) stand it for so many years.A Did he use to ...may B Used he ...canC Did he use to ...can D Used he to ...may为什

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( )smoke so much?I just don't know how you...下列选项哪个正确,为什么?( )smoke so much?I just don't know how you ( ) stand it for so many years.A Did he use to ...may B Used he ...canC Did he use to ...can D Used he to ...may为什

( )smoke so much?I just don't know how you...下列选项哪个正确,为什么?( )smoke so much?I just don't know how you ( ) stand it for so many years.A Did he use to ...may B Used he ...canC Did he use to ...can D Used he to ...may为什
( )smoke so much?I just don't know how you...下列选项哪个正确,为什么?
( )smoke so much?I just don't know how you ( ) stand it for so many years.
A Did he use to ...may B Used he ...can
C Did he use to ...can D Used he to ...may
为什么不选D,used to 在什么情况下作情态动词使用?

( )smoke so much?I just don't know how you...下列选项哪个正确,为什么?( )smoke so much?I just don't know how you ( ) stand it for so many years.A Did he use to ...may B Used he ...canC Did he use to ...can D Used he to ...may为什
答案是C.
句意是:他过去吸烟很多吗?我只是不知道你是怎样才能忍受他这么多年.
used to 一般情况下当实意动词使用.在一些语法书上也可以当情态动词使.