Complete the following sentences with be going to, will/won't, may/might, or could. More than one option can be possible. 

1. I ___________ go to the gym later after I finish my homwork.
2. It ___________ rain later, I'm not sure, so don't forget your umbrella.
3. She's studying hard, so she ___________ pass her exam with flying colors.
4. If you keep practicing, you ___________ become a great pianist someday.
5. They ___________ travel to Europe next summer if they can save enough money.
6. He's feeling a bit under the weather, so he ___________ take the day off tomorrow.
7. The new restaurant ___________ open next month if all goes according to plan.
8. If you're not careful, you ___________ miss the bus.
9. The company ___________ introduce a new product line next year to expand its market.
10. We ___________ go hiking this weekend if the weather clears up.