6)
May I give Stacy my bike?
Yes, you may. Only tell her to take care.
May I go for a walk with Sam?
Yes, you may. Only don't stay long.
May I cook dinner today?
Yes, you may. What are you going to cook?
May I watch this film too?
No, sorry. It's for adults only.
May I play computer games?
No, sorry. It's too late.
7)
1. must
2. may
3. can
4. must
5. can
6. can
