i have had the computer ____many years A since B in C for D /

i have had the computer ____many years A since B in C for D /
i have had the computer ____many years A since B in C for D /

i have had the computer ____many years A since B in C for D /
i have had the computer ____many years
选C
因为前面用的是现在完成时,表是发生在过去对现在有影响的事情
所以应该是指的是一段时间,所以用for+时间段表示一段时间
选C

选C for，表示持续了好多年。我这台电脑买了好多年了/这台电脑跟了我好多年了。
A是自从B是在。。的时间里或者表示将来的时间，只有C才表示一段时间
希望可以帮到你哦O(∩_∩)O哈！

C肯定对！要解释请追问！

C