--- I'd have made a phone call to you your telephone number．--- That’s all right．What wa

问题补充：

--- Id have made a phone call to you, your telephone number．

--- That’s all right．What was up then?

A. if I know

B. had I forgotten

C. if I hadn’t remembered

D. but I forgot

答案：

A. if I know

B. had I forgotten

C. if I hadn’t remembered

(答案→)D. but I forgot

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