Future Perfect or Future Perfect Continuous Tense?

 

1) I came to Spain in 1982. Next year I (be) here 20 years.

2) Where on earth is Tony? I'm tired of waiting for him. Soon we (wait) here for an hour.

3) Well, Mary, in six months we (be) married 25 years. How about a party to celebrate?

4) I'm going to be a very rich man. I'm sure that by the time I'm 40 I (make) my first million.

5) Alex: Well, Rosie will be in Madrid by now. Jim: No, she won't. Her plane (not/land) yet.

6) Once this room is finished, we (paint) six of the seven rooms in the house. Not bad for two days' work.

7) Do you think you (finish) writing that report by the time I get back?

8) Alex: Where's Julia? Is she coming or not? Jim: She was here but she (leave) by now. She said she was going at three o'clock. It's half past three now.