一篇英语阅读理解（对为“T”,错为“F”）
One day a shark met a monkey.The shark said,“Hello,my friend!Would you please come to my house?My mother and the others in my family want to see you.We talk so much about you every day,but we have never seen you.” “It's very kind of you,” the monkey said,“but you see I can’t swim.How can I get there?” “Oh,it’s easy.You can sit on my back.I’ll carry you there.” The monkey sat on the shark’s back and set off(出发).On the way the shark said,“I must tell you that my mother is ill.She will be well again if she eats your heart(心脏).That’s why I bring you to her.” “But I am sorry,I forget to bring my heart with me.Carry me back to get it,please.”said the monkey.“You are so forgetful.Let’s go back for it.”the shark said.When they returned,the monkey climbed up the tree and kept the shark waiting for him in the sea.( )16.The shark wanted to ask the monkey to visit his mother.( )17.The shark’s mother wanted to eat the monkey’s heart.( )18.The monkey was not clever.( )19.The shark didn’t get the heart of the monkey at last.( )20.The shark and the monkey are friends.