My grandma started using Weibo at the age of 70. She always says it’s never ____ old to start doing things.
______________! We will have an exam next week.
Just_______ here and don't go anywhere, or your parents won't find you.
---Millie, ______ late for school again. — Sorry, I won’t.
________ playing chess after school?
- ______ exercising, and you'll be healthier.