—why?Tom,your shirt is so dirty!—Mum,I ___my storeroom downs

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—why?Tom,your shirt is so dirty!—Mum,I ___my storeroom downstairs讲解
Acleaned
Bhave cleaned
Cwas cleaning
Dhave been cleaning
主要讲一下AB
现在完成时与现在完成进行时

A 我打扫过楼下的储藏室了（只是陈述过去某时发生的动作,不强调对现在的影响）
B 我已经打扫过楼下的储藏室了（暗藏的意思是：别让我再做了）
C 我刚才在打扫楼下的储藏室
D 我一直在打扫楼下的储藏室
供参考.
再问： AB可不可以这样理解我刚刚打扫完楼下的储藏室，所以我的衣服脏了就像是你为什么不吃饭？我已经吃过了。不就是：why don't you eat anything/ I have had yet.
再答：一般过去时只陈述事实现在完成时和现在完成进行时都强调对现在的影响您的例句中，答语明显是强调对现在的影响，所以用现在完成时。但是，与现在完成时相比，现在完成进行时更具有描述性，往往带有强烈的情绪。
再问：能举个例子么？
再答： I have read this book. 我看过这本书了（已经了解书的内容了） I have been studying for the whole day.我一整天都在学习（该让我休息一下了吧）

—why?Tom,your shirt is so dirty!—Mum,I ___my storeroom downs -Why?TOM,your shirt is so dirty!-Mom,i _my storeroom downs. Why is your bedroom so dirty?—Sorry,Mum.I___it 12.--- Why?Tom,your shirt is so dirty! Why is your bedroom so dirty?Sorry,mum.I ____ to clean it.[横 — Oh,why is your room so dirty?I wonder ______ . ——What makes mum so upset? ——___from school,I think. 是Tom is Tom ,take off your T-shirt right now!it looks so dirty?right your shirt is dirty.( ) it for you? ---Tom,___your T-shirt right now!It looks so dirty. 1.----Why is the classroom so dirty? ----The shirt is so dirty.----It really_______.A needs washi