Lisa, are you going to play ______ violin after school this afternoon? —No, and I’m going to play ______ chess with Tina.

You should ________ your son. He works harder than before.—Thanks, I will.

You had better take something to read when you go to see the doctor____ you have to wait.

The boy promises _________ late for school again.

_________ do you go to the library? —I usually go to the library twice a week. [ ]