28. your letter, I would have written back two days ago. A.If I received B.Should I received C.Had I received D.If I could have received 查看更多

 

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______ your letter, I would have written back two days ago.

A.If I received                                               B.Should I received

C.Had I received                                            D.If I could have received

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______ your letter, I would have written back two days ago.

A.If I received                     B.Should I received

C.Had I received              D.If I could have received

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________ your letter, I would have written back two days ago.

[  ]

A.If I received

B.Should I received

C.Had I received

D.If I could have received

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_________ your letter, I would have written back two days ago.

[  ]
A.

If I received

B.

Should I received

C.

Had I received

D.

If I could have received

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