30.-I wonder if you can go shopping with me together. -Sorry.I a letter all the morning and haven’t finished it yet. A.am writing B.was writing C.have written D.have been writing 查看更多

 

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 —I wonder if you can go shopping with me together.

    —Sorry.I       a letter all the morning and haven’t finished it yet.

    A.am writing                           B.was writing

C.have written                         D.have been writing

 

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―I wonder if you can go shopping with me together.

―Sorry.I       a letter all the morning and haven’t finished it yet.

A.am writing                                              B.was writing

C.have written                                            D.have been writing

查看答案和解析>>


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