用现在完成时和一般过去时造句 各两句 要一句现在完成时和一句一般过...

现在完成时 In the past few years,he has written 8 English books.
一般过去时 In the past ,he writed 8 English books.
现在完成时 He has served in the army for 2 years.
一般过去时 He served in the army 2 years ago.