Choose either "until" or "by" to complete the following sentences.

1. We must take a decision (until/by) Tuesday.
2. Mary should have waited (until/by) Tuesday to buy her new car.
3. Make sure you are at home (until/by) 8, my folks will be there to meet you.
4. Paul didn't stop working (until/by) lunchtime.
5. Will you be here when I come back? No, I'll probably have gone (until/by) then.
6. She'll be waiting for your phone call (until/by) the end of the weekend.
7. Let's wait here (until/by) it stops raining.
8. I'm studying every day (until/by) the test.
9. You have to finish the project (until/by) Tuesday.
10. His boss will be away (until/by) Monday. He'll be back on Tuesday.