He usually ______20 hours every day.
--- It’s good for you to ________ in class.--- I think so . Thank you.
You’ll be late _______ you leave at once.
--- Sixteen-year-olds should not be allowed to drive.--- _________ . It’s dangerous.
--- Could you please turn on the radio ? I am used to sleeping with the radio ________.--- Sure.
--- ________ it was very hot, he still played basketball on the playground.--- He is crazy about basketball.