完形填空。
It is Saturday morning. Mr. and Mrs. Green are at home 1 their two children.2 is their son, Jim. 3 is their daughter, Kate. They 4 have classes today. They are 5 chess in their room. They are 6 happy. Mr. Green is 7 a book in the living room. 8 is Mrs. Green? 9 is in the kitchen(厨房).She is cooking(烹调） lunch 10 the family.
What a happy family!
