1 It is called an computer 2 it was bought by my sister 3 it

1 It is called an computer 2 it was bought by my sister 3 it has belonged to our class
为什么1和2使用be动词,而3使用has

AngelBM 1年前已收到4个回答举报

lemon_msy 幼苗

共回答了19个问题采纳率：100% 举报

第一个固定句型It is said/reported据说据报道,也可以理解为被动,第二个就是被动,必须用be+v-ed的形式.第三个用的是现在完成时,它的形式是have/has+v-ed,

1年前

jizhezhaoxue 幼苗

共回答了7个问题举报

1和2 是被动语态 be是助动词
3是完成时完成时have done的形态

1年前

zjbb1982 幼苗

共回答了7个问题举报

1和2 是被动语态 be是助动词
3是完成时完成时have done的形态

1年前

马轶韬813 幼苗

共回答了2个问题举报

前两个都是被动语态，后一个是完成时态，不矛盾啊

1年前

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你能帮帮他们吗

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