题目内容
Julia ____ leave her store ____ a man entered the room to buy a book.
A. was about to, before B. was about to, while
C. was about to, when D. was to, then
C

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题目内容
Julia ____ leave her store ____ a man entered the room to buy a book.
A. was about to, before B. was about to, while
C. was about to, when D. was to, then