Write the plural possessive form of each noun for the first three questions .
- friend
- box
- house
Rewrite the possessive noun where necessary for numbers 4 and
5 . If the noun is already correct, write correct.
- Many people were astonished by (scientists’) discoveries in the twentieth century.
- Alternative energy sources had to be developed to satisfy (peoples’) need for electrical power.
5 . If the noun is already correct, write correct.