A． Their room is not coz
B． They are busy and occupie
C． They have chronic diseas
D． They take a nap after lunc

A． Lying in bed as long as possibl
B． Taking some sleeping pills to rela
C． Staying awake as long as they ca
D． Scheduling when to be away or aslee

A． its effect may linger for almost 10 hour
B． it disturbs the way people feel in daytim
C． it accelerates heartbeat and respiratio
D． they may want to take a catna