一道简单高中英语题(请进!请详细说明!谢谢!)

All his attention _____ on the computer game he was playing ,so he even
didn't notice his mother enter the room.
A has been fixed B was fixing
C was fixed D fixed

选C,Fix ones attention to
被动语态,所以是 be fixed 所有的注意力都被集中在电脑游戏上所以他没有注意到他的母亲走进房间。当他打游戏是过去进行时所以前面只能是一般过去时
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第1个回答  2011-08-18
C was fixed
要用被动语态的,一般过去时态下的被动语态,所以是was fixed
希望能帮到你啊!
第2个回答  2011-08-18
A过去完成时
第3个回答  2011-08-18
C fix one's attention on …… 固定搭配 此处被动语态 ,注意 didn't ,所以用过去式
第4个回答  2011-08-18
是D不?
第5个回答  2011-08-18
A 吧?
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