9．One clay Mike was playing near a river．（76）Suddenlyhis knife fell into the river．He felt very sad because the knife was （77）givento him by his father as a birthday present，but it was lost． Then all at once，a （78）kind old woman came up and asked Mike what was the （79）matter．"I had lost my knife，"he said，"it fell into the water when I was playing here．"The old woman（80）showedhim a gold knife and asked，"Is this （81）yours？""No，"said the boy．The old woman then show him silver knife and asked （82）again，"Is this yours？""No，"again answered the boy．Then she showed him an iron（铁） knife．"Yes，that's mine，"（83）calledout the happy boy．"I know it well （84）enough．"said the old woman．"Now I will give you both the gold knife and the silver knife（85）becauseyou are an honest boy．"
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