英语语法填空Enoughsleepisimportanttohealth.Theamountofsleepneeded(1)ontheageofpersonandtheconditionsin(2)sleeptakesplaces.Theyoungmayneedmoresleepthan(3)old,butusuallyeighthoursareenoughforthehealth

Question

英语语法填空
Enough sleep is important to health.The amount of sleep needed(1)____on the age of person and the conditions in(2)____sleep takes places.The young may need more sleep than(3)____old,but usually eight hours are enough for the health of grown-ups.Some can do with(4)____than this amount,but others may ceed more.Every person knows his own need.(5)____is then a matter of good judgment to satisfy his need.Sleep(6)____ always be enough to make one bring back his(7)____(strong) and get ready for a day's work.
Fresh air is necessary to sound sleep.So it is not(8)____reason for some people to think that it is practicable to sleep in the open air.A bath at bedtime,(9)____hot nor cool but of body temperature,may be helpful to sleep.Sleep prouducing drug(帮助睡眠的药物) should never be taken except when(10)____(suggest) by a doctor.

Answer 1

) depends
2) which
3) the
4) less
5) It
6) should
7) strength
8) without
9) neither
10) suggested