A new bike was bought for him 还是 has been bought for him after he enteredthe senior middle school of the city.为什么?has been bought 为什么错了 错在哪

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A new bike was bought for him 还是 has been bought for him after he enteredthe senior middle school of the city.为什么?has been bought 为什么错了 错在哪
A new bike was bought for him 还是 has been bought for him after he entered
the senior middle school of the city.为什么?has been bought 为什么错了 错在哪

A new bike was bought for him 还是 has been bought for him after he enteredthe senior middle school of the city.为什么?has been bought 为什么错了 错在哪
A new bike was bought for him 是正确的.
after he entered the senior middle school of the city. 动词entered 是过去式,主句的时态应与之保持一致,用一般过去式的被动语态.
has been bought for him 是现在完成时,时态不相符.

【俊狼猎英】团队为您解答.

正常情况下用一般过去时就可以了。一般过去时表示过去发生的行为
而现在完成时属于完成时,完成时一般是要表示行为产生一定的后果。