题目

The boy's name is David.He ______ two friends ______ school.They are Jenny and Paul.They three are good ______．They all like ______ sports.Jenny likes tennis very much.She thinks it is ______．She often plays tennis ______ the two boys after school.And she can play it very ______．Basketball is Paul's favorite sport.He thinks it is fun.He ______ like playing tennis and he thinks it is boring.David likes playing tennis ______ basketball.He plays ______ every day.They are relaxing for him. 【1】A.have B.has C.am D.are【2】A.at B.on C.from D.to【3】A.friends B.cousins C.boys D.girls【4下图是某化学反应的微观示意图，其中一种小球代表一种原子．则从下图获得的信息中，不正确的是（　　）A．该反应中共有两种元素B．该反应的本质是原子的重新组合C．右图中的各物质均属于化合物D．代表右图反应的化学方程式中，各物质的化学计量数均为1