The boy __exercises, so he has to see the doctor because of overweight.

Have you returned the book to the library _______?—Yes, I have _______ retuned it.

Do you know the girl in the white dress? —-Yes, she’s ____ university student. She always takes _____ umbrella with her.

What’s wrong with my son, doctor? — ____________ serious, just a slight cold. He’d better drink some water.

people got hurt in the 7.1-magnitude earthquake in northwest China’s Qinghai Province.