Eric is only six. He is a new schoolboy. It's seven in the morning. Mother goes to Eric's bed. She says, "It's time to get up, Eric." But Eric still stays in bed.
He says slowly, "Mum, I feel ill today."
"What's wrong with you, Eric?" Mother asks
"I've got a toothache and I…" Eric begins to cough.
Mother knows her son very well. And she sees a box of chocolate on Eric's bed. So she says, "OK, Eric. Stay at home with Grandpa today."
"But where are you going, Mum?" Eric asks.
"Oh, I will go to the zoo with your father today!" Mother says.
"What? Go to the zoo? You are not going to work?" Eric feels confused （困惑的）.
"Today is Sunday. we don't work on Sundays," Mother laughs （大笑）.
