读短文，补全句子。
It's Saturday today. It's seven in the morning. My mother is doing morning exercises and my father is
cooking breakfast. Grandpa is reading the newspaper. Grandma is watering the flowers. My brother Jack
is still sleeping. I'm writing an e-mail to my new friend, John. We are ready for the weekend.
1._______ reading the newspaper.
2._______ writing an e-mail.
3._______ sleeping.
4._______ cooking breakfast.
5._______ doing morning exercises.
