когда использовать am? а когда не использовать?

Например I am late. здесь используется, почему?

I work. не используется, как так?

1. Укажите верный вариант A. If you'll miss this train. you'll be late for your work B. If you miss this train. you'll be late for your work C. If you'll miss this train you are late for school D. If you miss this train you be late for your work 2.

How many hours/days do they work? Read, do the maths and say. translate. A. I, m a police office. I work at night. I work fifty hours a week. How many hours do i work every month? B. I, m an artist. I work at home. I usually.

Обведите правильный вариант 1 They can ... in the hospital. a. to work b. to play c. work 2 They like ... in the hospital. a. to work b. play c. work 3 I want ... in the hospital a. to work. b. play. c. work 4 I ... work in the hospital a. can not.

Where your cousin (to work) - Hi (to work) at school а) Where do your cousin work? - Hi works at school б) Where does your cousin work? - Hi work at school в) Where does your cousin work? - Hi is work at school г) Where do your cousin work?

Помогите, ответить на вопросы: A. I, m a police office. I work at night. I work fifty hours a week. How many hours do i work every month? B. I, m an artist. I work at home. I usually. work about ten hours a week.