用should和shouldn`t造句
You should be carefull.You shouldn't take the book.
i should study harder ,but i shouldn't use the old style to study
已经超过五年级水平了我怎么还没学到???
You should return my book this night!You should't have forgot the homework !嘿嘿,凑合着看看吧,俺水平也不高