I was never worried about this.为什么不是I am never worried about this_英语解答

I was never worried about this.为什么不是I am never worried about this.什么时候用am 什么时候用was

人气：320 ℃　时间：2020-01-29 16:00:34

解答

was 用于过去时
am 用于一般现在时
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