John is a famous writer now.But he said he was not a 小题1: student when he was young.He was often late for 小题2:  and didn’t like doing his homework. Sometimes, he slept in class while the teacher was teaching.He didn’t understand much, 小题3: he always thought he understood everything.One day the teacher 小题4:  the students a question, ‘When Jack was ten years old, 小题5: brother Bob was twenty.Jack is fifteen now and 小题6:  is his brother Bob?’ John said, ‘ That’s easy.Bob is twice as old as Jack.So he is now thirty.’ Another time, the 小题7:  in a science class asked, ‘ When it thunders（打雷）,   小题8:  do we always see the light before we 小题9:  the sound?’ ‘But, Miss,’ said John quickly.‘ Don’t you 小题10: our eyes are in front of our ears?’ 小题11: A．good B．tall C．rich D．fat 小题12: A．sleep B．lunch C．class D．play 小题13: A．so B．and C．or D．but 小题14: A．sent B．asked C．told D．found 小题15: A．your B．my C．his D．her 小题16: A．how many B．how old C．what D．who 小题17: A．teacher B．farmer C．nurse D．policeman 小题18: A．what B．when C．where D．why 小题19: A．read B．make C．hear D．smell 小题20: A．say B．hope C．study D．know