Excuse me, sir. I’m afraid you can’t smoke here. This is non-smoking area.—Oh, sorry. I ____________ the sign.

Which do you enjoy ________your weekend，swimming or fishing.

The boy _____ by the window is the only one of the students who _____ from the countryside in our school.

ing water , having a healthy snack and taking exercise are all positive ways to ____you when you are working on a tight schedule.

If I ever decided to quit,then nothing my parents or my couches _________ say _________ change my mind.It’s my life,not theirs.