One word is used twice

up · forward · back · ahead · under · by · down

1. Time goes so fast when you're enjoying yourself.

2. The swelling on my ankle is beginning to go now.

3. The speed of computers goes exponentially every year.

4. Do you know when the schools go ? These holidays seem to go on and on.

5. He and I go a long way. We've known each other for years.

6. As they won their heats, they've gone (or through) to the knockout stage.

7. As soon as I bought shares in it, the company went (bankrupt). I doubt I'll ever see a penny.