what has he found?和what had he find?这两句有木有写错呢?还有这两句有什么区别呢?

what had happened和 what has happened有什么区别 what did he do with it,和what did he do 有什么区别呢? what did he do和 what has he done 的区别 He has bought 和 He bought 有什么区别呢? what he had done和what he did What does he done?是不是he has had orange?(has had orange划线提问) he has gone跟he had gone 有什么区别? He was astonished at what he found. what he is 和what does he do的区别 what he is doing 和 what is he doing有什么区别? what does he say 和 what he says有什么区别 单项选择里怎么选 what ,s he like 和what ;s he looks like有什么区别