Write sentences comparing the things
----- Nội dung ảnh -----
```
Unit 3: WRITING Write sentences comparing the things, 1-16. Use the words below and your own ideas.
Safe Cheap
Interesting Healthy
Expensive Easy
Difficult Green
Convenient Fast
Eg. Trains are greener than planes.
1. trains/planes
2. football/basketball
3. books/films
4. rock climbing/surfing
5. pizza/vegetables
6. English/History
In pair, compare your sentences.
Trains are greener than planes.
Yes, but trains are slower than planes.
79
```