I'm using my brother's ruler(my brother's ruler)对画线部分提问

I'm using my brother's ruler(my brother's ruler)对画线部分提问 This is Tom' s ruler,画线部分为Tom' s ruler,对画线部分提问 This is my ruler.(划线部分提问)my ruler画线 I can spell "ruler"对划线部分提问：划线部分：spell "ruler" My pen is gree my brother has (read the book). (对画线部分提问) my brother is polite and helpful(对画线部分提问 （yang ling's ）ruler is longer than yang kai's（对画线部分提问） that young man is my old brother对(my old brother画线部分提问) 对画线的部分提问.1.The pen is two yuan ._________2.My ruler is bule I want to go fishing with my brother.对画线部分提问 My brother's English teacher is Mr Smith.就画线部分提问.画线部分是：Mr Sm ______?That's my ruler.A.Whose ruler is it?B.What ruler is i