Choose the correct alternative.

1. Where have you found out / did you find out about this workshop?

2. I haven't had / didn't have a free afternoon since the beginning of the school year!

3. Have you ever been / Were you ever at a science conference?

4. How long is it since we have taken / took that photo?

5. Jamie has used / used this anti-virus program for ages.

6. Don't make sandwiches. Mum has already ordered / ordered pizza.

7. Were late! The lecture has started / started at 10 o'clock

8. Mike still hasn't figured out / didn't figure out how to use this app.

9. They have studied / studied Spanish since 2014, but they can't speak it fluently yet.

10. I have watched / watched a great TV programme about climate change on Tuesday.