Without the air to hold some of the sun’s heat,the earth at night　　　.

I’m afraid I’m not ________ to help with the show next weekend.[ ]

. ——-Tom, I’m watching a football match.What about you——-­­­­­­­____­­­.

You should have put the milk in the ice box. I expect it _______ undrinkable by now. [ ]

Daniel is always willing ________ others _________ with their Math.