Are you a volunteer now?—No, but I _____. I worked for the City Sports Meeting last year.

Life is limited. We had better _______ it on valuable things.—Good idea. And we should spend more time ______ our family members.

I have to go to school by bus because my bicycle _____

When he looked up, he suddenly found himselfby a group of teenagers, looked at him anxiously

What would you like, tea or coffee— , thanks. I just prefer a glass of water.