# Unit 7: The time machine

> Từ vựng và mẫu câu Unit 7 (The time machine), English Discovery 6: He/She … in the past (past simple) / Did you … ?.

Source: https://olyclass.com/library/tb-english-discovery-g6-u07/

- Subject: English
- Level: A1
- Textbook unit: 16
- Play it free on one screen (projector, TV or whiteboard): https://olyclass.com/library?play=tb-english-discovery-g6-u07
- Copy and edit it: https://olyclass.com/library?copy=tb-english-discovery-g6-u07
- Games it plays well in: [Three in a Row](https://olyclass.com/classroom-games/three-in-a-row/), [Line of Four](https://olyclass.com/classroom-games/line-of-four/), [Prize Climb](https://olyclass.com/classroom-games/prize-climb/), [Hot Seat](https://olyclass.com/classroom-games/hot-seat/)

## Words in this game

- **wash**: I wash my hands before lunch.
- **age**: What is your age?
- **earth**: The earth is very big.
- **completely**: The glass is completely empty.
- **computers**: We use computers at school.
- **standard**: This is a standard size.
- **web browser**: I open a web browser at home.
- **scientists**: The scientists work in a lab.
- **favorite**: Blue is my favorite color.
- **webcam**: I talk to Grandma on a webcam.
- **search engine**: I use a search engine for homework.
- **quickly**: The rabbit runs quickly.

## Questions

1. Yesterday she ___ her hands before dinner. (wash / washed / washing / washs)
   Answer: washed
2. ___ you use a computer yesterday? (Are / Did / Do / Does)
   Answer: Did
3. Last night he ___ a webcam to talk to his friend. (use / used / uses / using)
   Answer: used
4. Did the scientists work yesterday? No, they ___. (didn't / doesn't / don't / weren't)
   Answer: didn't