1. As the driver switched on the engine, the car jumped forward.

Uzasadnienie: switch on - włączać.

2. The bill doesn't include service. When we pay, we can add on service.  

Uzasadnienie: add on - włączać coś dodatkowego. 

3. Why don't we slip on our coats now and leave the party? 

Uzasadnienie: slip on - szybko się w coś ubrać. 

4. Let's brush up on our Portuguese before we visit Lisbon.

Uzasadnienie: brush up on - odświeżyć swoją wiedzę na jakiś temat.

5. If you keep on speaking to me like that, I'm leaving!

6. My smartphone is two years old. Technology has moved on since I bought it. 

Uzasadnienie: move on - rozwijać się. 

7. I have a season ticket and go to every football game. I think it's important to be there to cheer on my team.

Uzasadnienie: cheer on - dopingować kogoś. 

8. Sorry but we have agreed not to take on any more work. 

Uzasadnienie: take on - przyjmować.