问题

__ your blog, I would have written back two days ago.

A:If I read
B:Should I read
C:Had I read
D:If I could have read

正确答案是：

同类题型

I want to know _____ .

_____ he was tired , ____ he didn’t stop working .

What was your sister doing at this time yesterday—She was reading a magazine _______I was writing an e-mail at home.

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