It’s very hot here. Why not ________ your coat? 

During the exam, we must ______ nervousness.

---What a mess(杂乱)! Tony, you should ___________ your things to keep the room clean.---OK, Mum! I’ll do it at once.

      a lot of trees in this area, but now we can see a museum instead.

—Hey guy, turn it off please. We don’t __________music in the reading room.  —Oh ,sorry!