题目内容
―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
D
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题目内容
―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