I lost my keys otherwise I comfortably in bed now.A. would have sleptB. were sleepingC.

问题补充：

I lost my keys, otherwise I comfortably in bed now.

A. would have slept

B. were sleeping

C. would be sleeping

D. am sleeping

答案：

A. would have slept

B. were sleeping

(答案→)C. would be sleeping

D. am sleeping

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