yestеrday - вчера
last (week, month, year) - на неделе), в году, месяце)
1. My friends live in a small town. It is a new town. The streets in the town are broad and straight. There are beautiful buildings in them. The town is very green, and so the air is fresh. There are beautiful parks and gardens in the town. People like to go there after work. In the evening you can hear sounds of music from the parks. There are schools, libraries, a hospital, a theatre, cinemas, polyclinics and kindergartens in the town. 2. This is a classroom. The classroom is large and light. 3. There is a picture on the wall. 4. What is the date today? It is the seventh of December. 5. The third lesson today is a lesson of English. 6. Pete, go to the blackboard. 7. After school I usually go home. 8. My father always comes from work late: at eight o'clock or at half past eight. But on Friday he comes home early: at half past four or at a quarter to five. On Saturday and on Sunday he does not go to work.
Last - это " "
Yesterday - это "вчера"