What is the correct answer

1.Jeffrey was about to/going to practice the piano this evening but he forgot.

2.I wonder whether will they/they will get married.

3.Anna said she would come but she doesn't/hasn't.

4.After we will decorate/have decorated the flat, we will move in.

5.I don't know where Sarah is.She might play/might be playing volleyball.

6.We're going to a concert tonight and another one/the one is tomorrow.

7.I'll see you on Friday, which/when I get a day off.

Can someone help me?Is this correctly?