Today I'm talking to Harry Brown．Harry once volunteered(义务)to teach in Cambodia．

Q：{#blank#}1{#/blank#}

A：In 2015.1 went with some friends who also wanted to volunteer there．It was a two．month volunteer experience．

Q：{#blank#}2{#/blank#}

A：I taught English twice a day at an orphanage(孤儿院):0ne class in the morning and one in the afternoon．And most nights I stayed back to watch them perform(表演)traditional dances for visitors of the orphanage．And in my free time during the day,I just played games with them．

Q：{#blank#}3{#/blank#}

A：The children that I met at the orphanage．The time I spent with them was the most unforgettable(令人难忘的)part of my volunteer experience．

Q：{#blank#}4{#/blank#}

A: For me，there was nothing more difficult than teaching English to children at the orphanage．I have to say,there was a really big difference in the degree(程度)of understanding from one student to the next．

Q：{#blank#}5{#/blank#}

A：Special and wonderful．When I first walked through the gate of the orphanage，I knew that my two-month volunteer experience would be one that l would always remember．The children there were very,very friendly．I enjoyed every minute of my visit from teaching to playing，and dancing!

根据材料内容从方框中选择合适的句子填入材料空缺处，使材料内容完整、正确，其中有一个句子是多余的。

Dear Selina,   

    I have some rules at my house. I have to stay at home on school nights. I have to do my homework and practice the violin. I can't watch TV. Well, I can go out with my friends on Saturday nights, but I have to be home before 9:30 p.m.

    What rules do you have at your house? Write and tell me about them.

Molly

Dear Molly,

    I also have rules at my house. On school nights I usually can't go out. But sometimes I can do my homework at a friend's house. Well, I can watch TV for half an hour before I go to bed. On Saturday afternoons, I can go shopping with my friends. I can buy my own clothes. That's nice, right?

Selina

{#blank#}1{#/blank#}Cherry wants to join a club that will keep her fit and active but because she has a part-time job every workday evening, she is only available to take part on the weekends.

{#blank#}2{#/blank#}David is a new student at the university, whose major is English literature. He is a little shy so she is hoping to join a club that can help him get to know new people and build his confidence.

{#blank#}3{#/blank#}Bonnie is majoring in drama and wants to be a scriptwriter when she graduates. She is interested in discovering new stories that she may one day be able to turn into movies. As her home is far from the university, she is only free during the day to take part.

{#blank#}4{#/blank#}Betty is studying film making and one day hopes to become a director. But she thinks her ability to create beautiful visual images is not strong enough, so she has recently purchased a camera to help her practice.

{#blank#}5{#/blank#}Jack is a first year geography student who would like to learn more about the geography of the local area. He is also worried about passing the English test that all students must take at the end of their first year of study. He has to return to his home to help his parents every weekend, so he is only free during weekdays.

    It was too late at night when an old man came to a small town. He found a small hotel and wanted to stay there for the night. After he went into his room, the owner said to his wife, "Look at his bag, there must be much money in it. Let's take it away when he is asleep, shall we?"

    "No, no." said the woman, "He must look for his bag tomorrow morning. If he can't find it, he'll telephone the police. "They thought for a few minutes. Then the woman had an idea, "We have forgetful grass. Why not put some into his food? If he has the food, he will forget to take his bag away. "The old man had the food with the forgetful grass and went to bed. The next morning, when the owner got up, he found the door open, and the man had left with the bag. He was angry and woke his wife up, "What a fool! Your forgetful grass isn't useful at all."

    "No, I don't think so He must forget something." she said. "Oh! I remember now!" cried out the man suddenly, "He forgot to pay for the night."

    From the story we know the owner of the hotel wanted to {#blank#}1{#/blank#}the old man's bag when he slept. But his wife {#blank#}2{#/blank#}with him, and she {#blank#}3{#/blank#}up with a good idea that they put some forgetful grass into the food {#blank#}4{#/blank#}that the old man would forget his bag. The forgetful grass worked. The old man really forgot something-he didn't {#blank#}5{#/blank#}to pay for the night.

    Don't be too surprised if you see a car going down the road without a driver in Beijing these days. {#blank#}1{#/blank#}Last month, Baidu began to test its self-driving cars on open roads in Beijing.

    {#blank#}2{#/blank#}Since then, companies like Tesla, Uber and Baidu have been working to produce and test their own self-driving cars.

    Self-driving cars are safer than regular cars. {#blank#}3{#/blank#}They can remove the stress of driving and allow disabled or blind people to get around more easily.

    {#blank#}4{#/blank#}In one test, researchers pointed a laser pointer(激光棒) at the car's sensors(传感器) while it was moving. The car mistakenly thought that the laser beam was in its way and slowed down or changed the direction.

    The software that is used to direct the cars may not be safe enough. {#blank#}5{#/blank#}When we use our computers or smartphones, they sometimes crash (崩溃)  without any reason. But if this happened to a self-driving car, the results could be deadly. Improvements to the software could be a solution to this problem.