求解答过程：— I'm sure my elder

求英语选择解答!I'm not sure whether___ him about it. I'm not sure what I can buy for my mother.I'm not sure _____ 求my sweet elder sister..谢咯 I‘m sure that my father will like it(否定) I'm not sure I'm sure. I'm not sure ( ). I'm sure you . 求解答过程：My friend showed me 求英语高手来解答.I'm really sorry.I forgot( )my home work yesterday. 求解答过程：— Don't worry; I am My brother is three years than I .A、elder,elder B、older,olde