I remember___a ruler.Why can't I find it?是to buy还是buying

I remember___a ruler.Why can't I find it?是to buy还是buying Thisis ___(I)ruler.your ruler is longer than___(I). I have a new ruler 请问i'm ruler 和 my ruler 有什么区别 ruler i have a ruler Me too this is___(i) ruler.where is___(you)? May I borrow your ruler?Yes,you_____ have i ruler may a组成一句话 may i have a ruler否定回答 I have a ruler?改为一般疑问句 may I USE your ruler 回答 I like your ruler改成一般疑问句 I want anew ruler同义句 want,ruler,buy,I,a,to I can't find my ruler.Can I b______ yours? A:May I use your ruler B:My ruler is too ____(short) ___________ It's his,I thinkA.Whose ruler is this B.Where's his ruler?