Answer:

1.become

2.will continue

3.will improve

4.collected

5.crosses

6.arrived

7.spread

8.go

9.will answer

10.walked

11.although

12.since

13.after

14.although

15.before

Explanation:

hope it helps

Answer:

1. becomes

2. will continue

3. will improve

4. collected

5. crosses

6. arrived

7. spreads

8. go

9. will answer

10. walked

Explanation:

hope it helps