OLD FRIENDS: TEST YOUR TENSES

In the photocopy pack you can find an extra activity called "OLD FRIENDS: TEST YOUR TENSES". Since we're pressed for time and won't be able to do it in class, I'm uploading the key below for you to do it as homework. It's an activity to revise the present simple/continuous, past simple and present perfect simple/continuous.
If you have any questions after you've done it, you can ask them to me in class.