he twobrothers, Bill is ____ younger one, and he is a quiet boy, _____ that mostadults like very much.

Did he notice you enter the room— I don’t think so. He _____ to the radiowith his eyes shut.

You may just give me a call or drop in, will do.

John promised his doctor he _____ not smoke and he has never smoked ever since. [ ]

Look，so many passengers__________ with their smart phones on the underground．