you can learn how blood _____ through the human's heart from

You pass through from the side,cannot say at heart human blood.为什么不是human’s blood? pour the heart's blood into sth Results from the US National Heart,Lung and Blood Institute' How can you improve your English through the book? _____ cat is _____?The girl's cat is.How old is it?Can you g you can learn （ ） about the school from the look? Learn to release from the heart. Hey!Can you heard the shout from my heart All the blood in the body passes through the heart at least you can learn new words from the d***** what can you learn from the story?write it down