1:Althoug I like eating junk food,but I try to eat it only once a month.(找出错误,并改正）

1:Althoug I like eating junk food,but I try to eat it only once a month.(找出错误,并改正）
2:She hardly ever exercise,so she is kind of unhealth.
3:How many book do you have?
4:Reading English every morning helps me learning English well.
5:Emily is good student.She is good for every subject.