—Irangyouataboutnine,buttherewasnoreply.—Oh,thatwasprobably__________I

发布时间：2020-08-13 17:07:41

—I rang you at about nine, but there was no reply.—Oh, that was probably__________I was seeing the doctorA.whyB.whenC.whatD.that

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B解析when引导表语从句，表示时间。故选B。
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