he is just _____ back from the USA.A.came B.coming C.come D.to come再麻烦讲讲有没有was just to do 的说法,这和过去将来是有联系吗?

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he is just _____ back from the USA.A.came B.coming C.come D.to come
再麻烦讲讲有没有was just to do 的说法,这和过去将来是有联系吗?

be to do 表正要做某事 ,指按照计划、安排将要做的事.was just to do从语法上来讲是可以的.指过去正要做某事.