单选题 The restaurant is in need of several waiters.

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

单选题 My grandparents are quite healthy and they travel from time to time.

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 Aerobic exercise is fit for many people.

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

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

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