choose the coreect word to coplete each sentence.
1. The ..... ( boy's / boys' ) clothes are dirty
2. Jack is brushing the ...( cat's / cats' ) fur
3. there are three eggs in the ... ( bird's / birds') nest
4. Mum has tidied up my .... ( sister's / sisters') bedroom
5. the ... ( tree 's / trees' ) leaves are falling to the ground
6. the ... ( boat's / boats' ) sails are white