I lost my pencil case.同意句急急急快一点，马上就用

I lost my pencil. I must look for one改错 I lost my pencil case.同意句急急急快一点，马上就用 i lost my pen.i have to write with a pencil这个句子为什么要把lost改为have lost呢? 英语：填入句子,补全对话.( ).I lost my pencil case.( It's yellow.( A pen,a pencil and a ruler.Look!( Yes,it is.( ).That's OK. i lost my feeling I LOST MY I lost my My pencil is b____.Can I use your pencil-s______? I’ve ever lost my The I luckily,lost my I got lost in my I lost my temper with I want to sharpen my pencil是什么意思 I have a long pencil.He has a short pencil.My pencil is_____than_____.同义句转换 oneday i lost u love,but i still lost my i am ().i lost my wallet There is a pen in my pencil case改为I () a pen in my pencil case I found my pencil that was my favoriteRT 还是I found my pencil that is my favorite