Ответ:

2-will/watch, 3-will change, 4-will not/won't forget, 5-won't be, 6-will operate, 7-will/have

2 - I may not have enough time to see you

3 - There might be houses on the moon in 50 years

4 - We might not have enough drawers for our clothes

5 - You may need some more lights for the garden party

6 - The world may be a better place than it is now

2-will (но это не точно), 3-won't, 4-will, 5-might, 6-may