A．Forty or fifty minutes of exercise once a week.
B．Twenty or thirty minutes of exercise every day.
C．Fifteen or twenty minutes Of exercise five days a week.
D．Thirty or forty minutes of exercise three or four days a week.

A．The neighbors probably won’t ’turn clown the music.
B．The man should move to another place.
C．The man should listen to some light music.
D．She doesn’t think the music is so loud.