i bought mp3 player for 3 days i have visited the zoo 3 days

I have bought the new mp3 for three days.这句话有什么语病哪?（单句改错） I have the book for two days.用borrowed,bought,lent,kept哪个?为什 I have __ the English club for only 3 days.< > A.joined B.be I have had the cake for 3 days 这句话为什么加had? I have been working for two days. ---May i keep the book that you just bought for several days ——May i keep the book you just bought for several days?——Of I bought the book three days ago的同意句 原句I have been away from Shanghai for 3 days为什么不能改成 I have be My I ask for (3day,3 days') leave I will stay there for 3 days 介词 disappear for severa i days