he said that he ```` to canada a few years ago a had been to b have been to c went d

he said that he ```` to canada a few years ago a had been to b have been to c went d
老实说选a 为什么不能用went 还有 to to 不是多了一个to吗?
英语人气:716 ℃时间:2019-10-24 03:24:06
优质解答
那就对了.had been to 已经移居
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