—Congratulations! Among the best pictures in the competition, I found _________. When did you draw it?—During the trip to the Yellow Mountain _________ May.

---You are late . What’s the matter ? ---I helped an old man _______ lost his way home .

This is not my book. It is         .

When she was walking in the street, she met a friend of _______.

---Whose watch is this? Is it __________?---No, it’s not __________watch. It’s __________.