题目内容
-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
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题目内容
-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