I haven't checked my computer today,because there's ＿wrong with my computer.为何答案something而不是nothing?

I haven't checked my computer today,because there's ＿wrong with my computer.为何答案something而不是nothing? I _____(check)my e-mails today.But I haven't got yours.填空.答案是have checked为什么用这个而不用checked?说的好有分奥 W：I've been meaning to get my eyes checked.I just haven't gotten around to it yet.M：Why don't you call for an appointment right away?Once on your calendar you will get it done. 【老友记307】图,why don't you tell him about the mole that i haven't checked yet? I haven't put my shoes on.可以说成?I haven't put on my shoes. 请问过去完成时态用法?I haven't had the car checked since February.请问其中的 had the car checked 为什么这样写,我小时写成had checked the car ,可以吗?请帮我解释一下,谢谢! 求教英语选择题,为什么选C而不选A呢?Sally:Have you received the email from the International Students Office?Kelly:__________What’s the matter?A.No,I haven’t.B.Yes,I have.C.I haven’t checked my email for several days.D.It has not y last week my bike________(steal).i haven/t found it. I haven't made my mind yer.什么时态 I haven't made haven't had my car repaired yet这句话对吗 我觉得应该是I haven‘t repaired my car yet I haven't seen my deskmate today还是i don't see? my parents haven't been to shanghai,and i haven't been to shanghai _____.either还是neither?为什么? I haven't got my bag.这句话如何翻译?haven't got是什么意思又是什么语法? I haven't left you alone.I need your love in my life I haven't left you alone.I need your love in my life 我没做完作业是I haven't finished my work 还是didn't? I haven't liked you I haven't a bean.