Reading comprehension. (阅读短文 ,判断正“√“×” 。 ) Grandma Wang is very old now. She has no child. She lives with her pet cat. Last Sunday some children visited Grandma Wang. They wanted to do something for her. Tom cleaned the windows. Amy washed the clothes. Lingling made a big cake. They worked very hard.     At lunch time,they were very tired and very hungry. They ate the cake. Grandma Wang was very happy. (     )1. Grandma Wang has three children. (    ) 2. Last Sunday, some children visited Grandma Wang. (     )3. Amy cleaned the windows. (     )4. They ate the cake for lunch. (     )5. Lingling washed the clothes.