Do you know anything about the players of our school basketball team?—Yes. They are _______ young boys between the age of thirteen and fifteen.

It’s______ late now, but I still have ______things to do.

I’m going to learn the piano when I retire. —That sounds ______ a good idea. [ ]

Will you stay at home until your sister comes back? —Sorry, I _______. I have a meeting and have to go in ten minutes.

He arrived ______ London ______ a cold winter night.[ ]