My grandma started using Weibo at the age of 70. She always says it’s never ____ old to start doing things.

 —Can you understand me?    —Sorry. I can _________ understand what you’ve said.  

The soft music sounds ____. We are all listening ____. 

 – Have you ________ been to New York?-- No, ________. 

He goes to school by bus, but he walks ______after school.