Question

—I rang you at about nine, but there was no reply.

—Oh, that was probably       I was seeing the doctor.

A．why                B．when                C．what                 D．that

Answer 1

B

解析:

主要测试表语从句。有所给语境可知译文为：---大概九点钟我给你打电话，但是没人接。----哦，那时可能我正看医生呢。