. He is too tired ________ any longer.
There are six boys and two girls in the classroom; that’s eight _______.
Who is that young woman ______ is standing over there?
You should not go rafting ________ you know how to swim.
You can ______ this car with that one; then you will see which one is better.
—I heard that Tom stole all the money from the old man. —You’re joking! ________