There are about ______ people in this town．

Lucy and Maria are talking ____ their classmates Tim. He isn’t at school today.[ ]

She looks sad. Do you know why?—Her son went to study in Canada. I think she _________ him.

Why does take Tom an hour to get home?— I don’t know. Maybe the traffic is heavy.

Go to _______/bed/ early, please. It is good for your health.