Used to / Would / Will

Gap-fill exercise

Choose the most suitable option. Then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. Note that you will lose points if you ask for hints!
1. Scientists (would/used to) believe that the brain couldn't develop after a certain age.
2. Before the digital age, we (used not to/wouldn't) have so many distractions.
3. Our brains don't always get enough sleep, and when they (do/have), it's not always good quality sleep.
4. The body releases chemicals into the brain and as it (does/is), these affect our mood.
5. He had never cried before, but when he finaly (had/did), he felt so much better.
6. It's about time we changed the way we think; everyone else (does/has).
7. Do you need any help? If you (need/do), let me know.
8. He used to walk to work, and as he (did/does), he focused on the day ahead.
9. They (will/used to) play music late at night, which drives me mad.
10. They haven't talked for ages and it's easy to forget they ever (did/have).