Are Mr. and Mrs. Wang living alone in the house? —-Yes, altough they have three sons, of them live with their parents.

_____ do you go to your grandma’s home? —Twice a week. [ ]

Tina ______ her mother. They are both tall and like to help others.

How many monkeys are there in the zoo?— ______.

It’s said that he started his own firm when he was only 24.