这道英语完形填空怎么写呢?Dogshavebeenman'sgoodfriendsfort________ofyears.Manystoriestoldhowbravedogshelpedpeopleint_____.Withthehelpofdogs,manypeoplel______insnowfoundtheirwayhome.Dogshavealsohelpedinmany

　　这道英语完形填空怎么写呢?

　　Dogshavebeenman'sgoodfriendsfort________ofyears.Manystoriestoldhowbravedogshelpedpeopleint_____.Withthehelpofdogs,manypeoplel______insnowfoundtheirwayhome.

　　Dogshavealsohelpedinmanyscientificresearches.Thefirstspacetravellerwasadogn___________Laika.Itwassentupinamanmadeearthsatelitein1957bYR_______scientists.

　　Dogshavebecomefilmstars,too.AdogcalledLassiewasthestarinquiteafewAmericanf____________.

　　Dogscanh_____ands________betterthanman,buttheycan'tseesowell.Adogmayl___________forabout12or13years.Athirteen-year-oldchildisn'tgrownupyet,b___________athirteen-year-olddogisaveryolddogindeed.