Read the following article and answer the question. Article: Mr. White is very busy today. He helps his mother move into a new house. He starts at 3:30 in the afternoon. First he cleans the windows. Then he carries all the heavy furniture into the new house. He helps his mother put the curtains up too. Mr. White is very tired when he gets "home". It is 9:15 p.m. He can't find the right key to the front door. The front door is locked. Then he tries the back door, but it is also locked. "I should climb in through the kitchen window," Mr. White says to himself. He doesn't want to wake up his wife and children. But suddenly, a big black dog comes to him from behind. Mr. White is afraid and surprised. He doesn't own a dog! He is at the wrong house! Soon the police come. "I'm not a thief or a robber," says Mr. White to the police. "I'm at the wrong house. Please believe me." What an unlucky poor man Mr. White is! Question: When does Mr. White start to help his mother? Answer:
OPTIONS:
- At 3:30 a.m.
- At 3:30 p.m.
- At 9:15 a.m.
- At 9:15 p.m.

Answer: At 3:30 p.m.

Read the following article and answer the question. Article: Mobile phones and the internet have improved our live in many ways. However, along with improvements, they have also brought a number of worrying problems. Many car accident are caused by mobile phones. You can use many new mobile phones to get on the internet. This can be very convenient, but some drivers get on the internet while driving. Driving needs all our attention. By looking at their mobile phones and not at the road, these insensitive Drivers are a danger to us all. Many of the dangers of the internet are well known. Children who visit websites without their parents' permission sometimes talk to older people they don't know and put themselves in great danger. People with blogs sometimes post embarrassing photographs of people they don't know on their websites without permission. There are also people who use the internet to get personal information that we do not want them to have. Mobile Phone and Internet Safety Tips If you need to use a mobile phone with you drive use a "hands-free" phone. In difficult driving situations such as rain or snow, do not use your phone at all. Do not make very important phone calls while driving. They take your attention off the road. Tell your children not to talk with anyone they do not know on the internet. In an embarrassing situation, pay attention to people around you. People will be shy about taking your picture if they know you're paying attention. Refuse to give out any information personal information on the internet. Question: A "hands-free" mobile phone is probably a mobile phone that _ . Answer:
OPTIONS:
- is free to use
- can be used without your hands
- can be used with only one hand
- can be use only in ears

Answer: can be used without your hands

Read the following article and answer the question. Article: Qian Xuesen is one of the greatest scientists who devoted all their lives to China's science and technology. In 1911, he was born in Hangzhou, eastern China. Qian received a mechanical engineering degree in 1934 in Shanghai and went to the United States on a scholarship to study aeronautical engineering at MIT at the age of 23. As a student at MIT, and later as a scientist and teacher at the California Institute of Technology, Mr.Qian played a central role in early United States' efforts to develop jet aircraft and rocketry technology. Mr. Qian served on the United States government's Science Advisory Board during World War II. His teacher and colleague, the Caltech physicist Theodore von Karmon, praised him as "a brain whose work will change the world greatly". In the 1940s Qian wrote an article for a famous magazine on a winged space plane that led to develop NASA's new space shuttle. In 1955 he came back to his motherland from the US. Under his leadership, China produced its first missile called Long March, and in 1970, launched its first satellite. He was considered as the father of the country's first ballistic missiles, first satellite and the Silkworm anti-ship missile. In 2009, he died in Beijing. Question: What did Qian Xuesen do in Shanghai? Answer:
OPTIONS:
- He got a mechanical engineering degree.
- He became a great scientist.
- He studied aeronautical engineering.
- He wrote a suggestion for a winged space plane.

Answer:
He got a mechanical engineering degree.