Next month my family will buy a ______ car.

A．Sleep for a long, single block is not always good for our bodies.
B．Children under five are energetic because of their naps.
C．We were born with a habit of sleeping for about eight hours a night.
D．Babies would need much sleep every day after they mere born.

A．I’m sorry.
B．I’ll see you later.
C．Is that so early
D．Must you leave so soon