Regarding "question tags"
Could you revise pls...

1.We are writing a test right now, aren't we?
2.We are writing a test right now, arent we?
3.I like to help my friends, do I?
4.Open the door, will you?
5.We have already decided where to go, haven't we?
6.I'm not a doctor, am i?
7.They don't like to go to the disco, are they? (or do they?)

Question

Regarding "question tags"
Could you revise pls...

1.We are writing a test right now, aren't we?
2.We are writing a test right now, arent we?
3.I like to help my friends, do I?
4.Open the door, will you?
5.We have already decided where to go, haven't we?
6.I'm not a doctor, am i?
7.They don't like to go to the disco, are they? (or do they?)

Answer

Pretty close! :)

3. I like to help my friends (+), don't I (-)?
7. They DON'T like to go to the disco, DO they?

If the question tags are new for you, then these are the correct sentences. You'll learn more advanced rules later, but this is your foundation.

Answer

7, depends on what you mean : They don't like to go to the disco, do they?