阅读下面的材料，根据所给的首字母提示，用合适的单词填空。
My name is Lucy. I am 13 y__ old. I am a s______ at No.1 Middle School. I am in Class5, G_____7. My twin brother Hu Wei is a_____ in the class. We are twins, but we don’t l________ the same. We go to school and go back home together every day. Sometimes we can help each other with our homework. I am good at English and he can help me w_______ my Maths.
My classmates are all very k_______. I have some g_____ friends. We have a lot to talk about and we often chat with each other after c______. My brother doesn’t understand(明白)  why we talk all the time（一直）. But we n______chat with each other in class.