完形填空.​we must 1 to bed early and get up early in the morning.(紧急求助）
if we 2 ,we shall be healthy.The baby 3 enough sleep.Children need nice 4 sleep every night.Some 5 go to bed late at night and get up late in the morning.This is 6 good for them.We 7 sleep when it is dark.when 8 breaks,we must get up.

A.went  B.go  C.going 

A.do  B.does  C.did

A.need  B.need to  C.needs

A.hours'  B.hours  C.hour's

A.child  B.people  C.man

A.no  B.hardly  C.not

A.must  B. can C.may

A.this  B.it  C.that