. We should respect food and think about the people who don’t have we have here and treat food nicely.
To keep ______, we must do more out-of-door exercises.
Thank you for_______ my trouble.
It is worth considering what makes “convenience” foods so popular, and ____ better ones of your own.
I’m sorry you’ve been waiting so long, but it’ll still be some time ____ Brian get back.
If you really have to leave during the meeting, you'd better leavethe back door.