You are a good student.Are you a good student?He can swim.Can he swim?She washes her hair every day.Does she wash her hair every day?There is a big playground in our school.Is there a big playground in our school?Mary is doing her homework.Is Mary doing her homework?I watch TV on weekends.Do you watch TV on weekends?They are going to play badminton after school.Are they going to play badminton after school?上面是陈述句改成一般疑问句的练习