My friend Tony is an American41 . He is ten years old. He lives42his family in China now.

My friend Tony is an American 41 . He is ten years old. He lives 42 his family in China now. There are 43 people in his family; his mother Mrs. Green, his father Mr. Green and his little sister Amy. He has a white cat. 44 name is Betty. Look！Amy is playing 45 Betty. His father, Mr. Green, is watc­hing TV. His mother is doing housework. What about Tony? He is doing 46 Chinese homework. He can't 47 Chinese well, but he likes Chinese very much. Tony's 48 works in a TV station. His father works in a school as an 49 teacher. Tony and his sister 50 to the same school.
【小题1】A．girlB．boyC．catD．dog【小题2】A．onB．afterC．withD．in【小题3】A．two B．threeC．fourD．five【小题4】A．HisB．HerC．It'sD．Its【小题5】A．toB．withC．fromD．at【小题6】A．her B．it'sC．aD．his【小题7】A．say B．tellC．speakD．talk【小题8】A. father B. mother C. sister D brother
【小题9】A．ChineseB．JapaneseC．EnglishD．Australian【小题10】A．go B．goesC．goingD．to goB

(答案→)B 解析：【小题1】根据Tony这个名字为男孩名字，故选B【小题2】do sth with sb，表示与某人一起做某事，故选C【小题3】根据后文内容his mother Mrs. Green, his father Mr. Green and his little sister Amy.可知答案为C【小题4】根据前文的内容He has a white cat.，可知后文是介绍猫的，故用it 的物主代词，its，故选B【小题5】play with sb 或sth 即与···一起玩，故选B【小题6】do one’s homework，表示做某人的家庭作业，故选D【小题7】说某种语言，可用speak +某种语言，故选C【小题8】根据上下文内容介绍，可以推知答案为B，表示其母亲。【小题9】因为其是美国人，故应该教英语，故选C【小题10】根据上下文的内容可以判断用一般现在时，而主语为复数形式，故选A，用动词原形。

就是这个解释