Choose the appropriate word for the gap.
1. People are adults at 18 or 21, but I don't think they are really
until about the age of 30.
2. If you two children keep arguing, I'll have to get your father in to
3. I take a
size in hats.
4. When there is serious trouble in a country the
often takes control.
5. Her French is not very good, but it's
adequate for our purposes.