高等教育 / 新发展英语综合教程(二)
It was _ _ _ _ _ _ he saw the doctor coming out of the emergency room with an expression as grave as a judge _ _ _ _ _ _ _ he realized the seriousness of his wife's illness.
A.not until...that
B.after...when
C.until...then
D.before...that
A.not until...that
B.after...when
C.until...then
D.before...that
参考答案:
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