Sleep，as we know， is important to us． And 56． ＿＿＿＿

ow many sleep do we actually need？For most 57． ＿＿＿＿

of us， eight hours seem to be about the right 58． ＿＿＿＿

amount． Yet we know that there are a 59． ＿＿＿＿

great many people who get along well less 60． ＿＿＿＿

sleep ，and some whom may even need more． A 61． ＿＿＿＿ great deal depends by the way we live． But 62． ＿＿＿＿

a good common rule to follow to is to 63． ＿＿＿＿

sleep long as we have to． So we’ll feel 64． ＿＿＿＿

happy and be able

to work with our best when we wake．

13.My friend Henry has a most unusually hobby

（爱好）． He likes plant flowers in strange places．

When the spring comes round， you can always tell

Henry had been busy working because the dirty sides of

canals（沟渠） and railway banks suddenly

became filled of flowers． In his spare time， with

pockets full of seeds， Henry goes round by his bike．

He has a long pipe with him blow seeds into places

that is hard to reach． When his flowers fade（凋谢），

he goes round again to collect its seeds． In this way

he always has a big supply．

65． ＿＿＿＿ 56． ＿＿＿＿＿ 57． ＿＿＿＿＿ 58． ＿＿＿＿＿ 59． ＿＿＿＿＿ 60． ＿＿＿＿＿ 61． ＿＿＿＿＿ 62． ＿＿＿＿＿ 63． ＿＿＿＿＿ 64． ＿＿＿＿＿ 65． ＿＿＿＿＿