May I go to the movie with you- No, you can’t, _____you have a ticket. I have only one ticket.

My parents always encourage me to face the trouble in my life.

Let’s ___ __ football after school!

Were you at home at 7:00 last night—Yes，I______at that time.

the air to hold some of the sun’s heat,the earth at night ________, too cold for us to live.