Question

Last night, I          computer games when my mother came into my bedroom. You can't imagine how embarrassed I was then!                       
A. played                   B. was playing              C. have played

Answer 1

B

考查动词的时态用法。根据句意，母亲进入我房间时，我在玩电脑游戏。后面的动作持续时间长，强调正在进行，用过去进行时：was playing。