what do you think of the film last night?it is the best film that i ____ever seen
横线里为什么用have而不用had
人气:324 ℃ 时间:2019-09-22 07:28:57
解答
had been是过去完成时,指的是过去的过去.你看用的是is就可以知道,这里说的只是过去发生的事,不存在过去的过去,所以用have
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