问题
选择题
—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
答案
答案：B
when引导表语从句，表示时间。故选B。
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—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
答案：B
when引导表语从句，表示时间。故选B。