把下列句子转化为否定句和疑问句
1.Mray likes eating strawberries.
2.They often play football after school.
3.They usually have a barbecue on sundays.
4.The girl speaks english quite well.
5.We study hard for ourselves.
6.He often plys with his friends on sunday.
7.She often goes to school on foot.
8.We finish our homework on time every day