问题
选择题
I can never forget the day ____we worked together and the day _____we spent together.
A．when; which
B．which; when
C．what; that
D．on which; when
答案
答案：A
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I can never forget the day ____we worked together and the day _____we spent together.
A．when; which
B．which; when
C．what; that
D．on which; when
答案：A