Apostrophes

Show possession using an apostrophe: "The enamel of the teeth was very white"

Show possession using an apostrophe: "The wheels of the cars were spinning fast"

Show possession using an apostrophe: "The work in the first three days was easy"

Singular or plural noun? "The parent's complaints."

Singular or plural noun? "The boy's dilemma."

Singular or plural noun? "The parents' representative"

Singular or plural noun? "The friends' joke."

Show possession using an apostrophe: "The labels of the packets came off in her bag"