A:Hey,Peter!You look tired.(71) ?
B:I didn't get enough sleep last night.
A:Were you just doing your homework last night?
B:(72) .Mountains of homework,math,chemistry,Chinese …I didn't finish it until midnight.
A:Poor guy!No wonder you don't look well.
B:You know,less sleep is bad for my health.I am not as energetic as before. (73) ?
A:Sure.I advise you to make a plan before doing your homework.First things first.And you'd better do some outdoor sports.
B:(74) .I am going to follow your advice.Thank you.
A:Um …If you are too busy on weekdays,just relax yourself at weekends.
B:Weekends?No kidding.I have to take after﹣school classes at weekends.
A:You do?(75) ?
B:Because my parents want me to get into a good high school.
A:Yes,I guess that is the reason.Perhaps you should talk to them and explain that health is the most important.
B:You are right.Thanks for all the good advice.I'll try to talk to them.