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In the Britain,sales of cigarettes( have been reduced) quite a lot in the last ten years为什么要用BEEN 不能直接用HAVE REDUCED
题目详情
In the Britain,sales of cigarettes( have been reduced) quite a lot in the last ten years
为什么要用BEEN 不能直接用HAVE REDUCED
为什么要用BEEN 不能直接用HAVE REDUCED
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答案和解析
在英国,过去十年以来,香烟的销量已经降低了很多
have been 是完成时态的被动语态,香烟的销量是被降低的
have done现在完成时主动语态,所以这里不能用
have been 是完成时态的被动语态,香烟的销量是被降低的
have done现在完成时主动语态,所以这里不能用
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