i have lost my book just now这句话语法有问题没?

i have lost my book just now这句话语法有问题没? now you just somebody that i used to know这句话哪里有语法问题 英语语法问题I have lost my book since one year ago这句话不对吗 since短语能和 I'll be just have waiting for you.这句话语法有错误没 l have been drank just now这句话有没有错的地方 --- I have found my lost book.So I feel ---. I saw him that was flying a kite just now这句话有没有语法上的错误? I have just read that book英文语法疑问 I have finished my homework now这句话语法分析 i get to keep all my pay no bills just my car这句话的语法? I am writing the text while chating with my friend.这句话有语法问题吗 请问下面这句话有没有语法问题：I sometimes clean my room.