读句子,选出正确的答案并写在横线上 mine yours hers his ours

读句子,选出正确的答案并写在横线上 mine yours hers his ours
1 There are many pens on the desk,Which one is ___him?
2 The book is yours._____is in my bag.
3 Susan is a beautiful girl.This nice dress is _____.
4 Peter likes playing basketball.The basketball is _____
5 We bought this ball together,so this ball is___