John is a famous writer now. Bob said he was not a good student ___1_____ he was young. He was often late for____2___ and didn’t like doing his homework. Sometimes, he ______3____ in class while the teacher was teaching. He didn’t understand much, ____4____but he always thought he understood everything. One day the teacher ___5___ the students a question, “When Jack was ten years old, _____6____ brother Ben was twenty. Jack is fifteen now and _____7___ is his brother Ben? John said, “That’s easy. Ben is twice as old as Jack, so he is thirty now.”
Another time, the ____8_____ in a science class asked, “When it thunders(打雷), __9___ do we always see the light before we hear the sound?”
“But, Miss,” said John quickly, “don’t you ___10_____ our eyes are in front of our ears?”

John is a famous writer now. Bob said he was not a good student ___41_____ he was young. He was often late for____42___ and didn’t like doing his homework. Sometimes, he ______43____ in class while the teacher was teaching. He didn’t understand much, ____44____but he always thought he understood everything. One day the teacher _____45___ the students a question, “When Jack was ten years old, _____46____ brother Ben was twenty. Jack is fifteen now and _____47___ is his brother Ben? John said, “That’s easy. Ben is twice as old as Jack, so he is thirty now.”

Another time, the ____48_____ in a science class asked, “When it thunders(打雷), _______49___ do we always see the light before we hear the sound?”

“But, Miss,” said John quickly, “don’t you ___50_____ our eyes are in front of our ears?”

It was a very long day for Jack. He didn’t get home from

school ____ six o’clock.

根据短文内容,用方框内所给单词的适当形式填入短文空格内,使短文意思正确、通顺，每词限用一次。

At 8:30 this morning the body of a man was _1_________. Someone murdered (谋杀) _____2_____. A small knife was found near the body. The murderer might _3_________ that knife. The police doctor said, “The man died about eight hours _4_________.” So the murder had possibly happened_5________ midnight and one o’clock.

The police __6_______ three men. They didn’t tell the men about the murder.

The first man said he had been at home the whole evening. He had watched television and went to bed early.

The ___7_______ man told the police that he had spent the evening 8_________ with some friends. They had been to the cinema together. He got home at about eleven o’clock.

The third man said he ___9______ nothing about the murder. He told the police, “And I have not owned a knife. I was sleeping at midnight. I didn’t murder Jim Wilson.” The police ___10_______ found who the murder was!