【Once，anoldandeccentric（古怪的）scientistdecidedtousethecloningprocedure（56）___（make）acloneofhisboss'sdog．Hewasworkingonthe（57）___（assume）thatifheproducedacloneofthedog，hisbosswouldapprov】

　　Once，an old and eccentric（古怪的） scientist decided to use the cloning procedure（56）___ （make） a clone of his boss's dog．He was working on the（57）___ （assume） that if he produced a clone of the dog，his boss would approve his promotion．The man stirred his mixture（58）___ contained the dog's hair．（59）___ his colleagues heard about his efforts they would be bound to stop him．They could never resist an opportunity of saying that he was too old to work in a cloning laboratory．True he did make mistakes from time to time，but only last week he succeeded in（60）___ （restore） a dead mouse to life as a clone．So，why not clone a dog？As he was thinking，the mixture thickened．He stared（61）___ （impatient） at it，waiting for the shape of the animal that would shortly emerge．Gradually the cells began to form．（62）___ creature began to grow and develop（63）___ （claw） and feathers!The scientist screamed and（64）___ （flee） from the room as any possibility of promotion disappeared in that instant．He had not brought back a dog（65）___ produced a monster!