—I rang you at about nine, but there was no reply.—Oh, that was probably I was seeing the doctor.
#74184
A
why
B
when
C
what
D
that
推荐题目
(2013·山东卷)There is no simple answer，________is often the case in science.
#66743
A
as
B
that
C
when
D
where
There was an old man wandering about the corner _____ waiting for someone.
#72474
A
even though
B
even if
C
as if
D
in case