单选题 We study at school and at the same time we do some part-time jobs in some shops or companies.

单选题 My father now pays great attention to his weight.

单选题 Be sure to eat a good balance of different foods if you want to stay healthy.

单选题 Aerobic exercise is fit for many people.

单选题 I worked at a factory during the summer vacation and the boss offered us free lunch.

单选题 The restaurant is in need of several waiters.

单选题 Experts believe that fitness walking is good for health in many ways.

单选题 Students often earn some money by working as a tutor.