choose the correct word to complete each sentence
1 the book is.................. but you are welcome to read it
2 ..............bike is dirty and i can't tell what colour it is
3 your country is much bigger than.........................
4 ............... dog is so friendly . it never barks
5 ...................not easy to find your way in a strange city
1 mine
2 your
3 ours
4 their
5 it's