1) Nick can ansver on this simple questions
2) Mary can swim and ski well
3)Little John couldn't speak Spanish
4) He can invite Nick to his place
5) Now she may go for a walk
6) Can he visit me the next Friday?
7) Mike can use my big umbrella
8)They may come back tomorrow
9) Jane must find her cousin
10) Richard must help his son in the garage
11) Your daughter must be overslept
12)Small children musn't go for a walk without their parents
13) He must rebuild his garage