英语短文改错题,请帮做下,最好能有解析,Mark is a middle school student.He lived in the middle of the town.About a mile from Mark's building,there have many old houses.They are all empty and going to be pulling down.His father says they

英语短文改错题,请帮做下,最好能有解析,Mark is a middle school student.He lived in the middle of the town.About a mile from Mark's building,there have many old houses.They are all empty and going to be pulling down.His father says they
英语短文改错题,
请帮做下,最好能有解析,
Mark is a middle school student.He lived in the middle of the town.About a mile from Mark's building,there have many old houses.They are all empty and going to be pulling down.His father says they are dangerous and tells him to keep away from them.But he enjoys playing here very much.One Friday on their way home from school,Mark went into one of the empty old houses.He saw a door leading a small dark room.He went into the room to see what he could find them.Just then he heard a terrible sound.The roof of the old house fell off.Mark tired to open a door.However,he couldn't.But he had to stay there.Mark was saved three days late by some policeman.They used dogs to find him.

英语短文改错题,请帮做下,最好能有解析,Mark is a middle school student.He lived in the middle of the town.About a mile from Mark's building,there have many old houses.They are all empty and going to be pulling down.His father says they
通篇时态不一致,改为一般过去时,对应下文
Mark （was） a middle school student.He （lived） in the middle of the town.About a mile from Mark's building,there （were要用there be句式,一般过去时） many old houses.They （were） all empty and going to be （pull被动要用过去分词） down.His father （said） they （were） dangerous and （told） him to keep away from them.But he （enjoyed） playing there very much.One Friday on their way home from school,Mark went into one of the empty old houses.He saw a door leading（to通向） a small dark room.He went into the room to see what he could find （这里去掉them,what充当从句的宾语）.Just then he heard a terrible sound.The roof of the old house fell off.Mark tired to open the door.However,he couldn't.(So表结果) he had to stay there.Mark was saved three days （later表后来,late是迟的） by some （policemen用复数）.They used dogs to find him.

the center of the town
a mile away from
there are many old houses
by some policemen
可能有错~~可能有没找出来的~~~尽力了哈~~~

Yesterday I joined a tour to see great whites in the ocean. It was very exciting. A group of six met the tour guide in the morning. He took us onto the boat. When we got far enough from the shore,...

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Yesterday I joined a tour to see great whites in the ocean. It was very exciting. A group of six met the tour guide in the morning. He took us onto the boat. When we got far enough from the shore, the guide stopped the boat and put some chum into the water to attract the sharks. In a few minutes, one came close to our boat. We got into a small shark cage at the rear of the boat. Then the guide lowered the boat under the water so that we could see the shark up close, and it was huge. I never thought I would have the courage to get in the flimsy cage. Do you know a great white has 5000 teeth?
great white: 大白鲨,不用加shark
chum: 引铒的专用词
shark cage: 看鲨鱼的笼子

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