Miss Gao isn’t at home. She to the station to meet her friends.

Do you know if Kitty ______ shopping this afternoon?— I’m not sure. But if she , I will let you know.

Why not open the window? It’s too in the room.

Daniel is one of those students who _______ always willing to help others .

When do you have math?—I have it _____ Monday, Tuesday and Thursday.[ ]