—Tony, you must have noticed the student who broke the window. —I’m sorry. I __

题干

—Tony, you must have noticed the student who broke the window.
—I’m sorry. I _______ attentively.

A．studied	B．was studying
C．am studying	D．would study

上一题下一题 0.64难度单项选择更新时间:2014-03-06 02:14:23

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