input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Mr. Hunt was living in a village and he wanted to go to an office one day. He got into his car and drove to the city. He went there without any trouble and stopped in front of the door. He locked his car and started to go into the office, but then he turned around and went back to his car. "I've left my keys in it!" he said to himself. Then he called his wife and said, "Excuse me, but I've locked my keys in my car, please bring your keys to me." Mrs. Hunt got into their second car and drove thirty kilometers to her husband. But while Mr. Hunt was waiting, he walked around his car and tried the other door. It was not locked. He locked it quickly before his wife arrived. ,. Options: A he forgot to call his wife B he left his keys in the car C he took something in the car D there was something wrong with his car Answer: B he left his keys in the car Question:???
output answer: Mr. Hunt returned to his car because _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Jack drives a school bus.His bus is different from other school buses because it doesn't carry children.Jack's bus takes dogs to school in the morning and brings them home at night.Jack takes the dogs to "The Dog School".There four men teach the dogs to obey and protect their owners.All kinds of dogs go to the school--large dogs,small dogs,young dogs and old dogs Jack says that young dogs are the easiest to teach,but the old ones can learn,too. Do you have a dog? Maybe it would like to go to "The Dog School". Options: A Old dogs. B Young dogs. C Large dogs D Hot dogs. Answer: B Young dogs. Question:???
output answer: Which kind of dogs are easy to teach? _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: A young man once went to town and bought himself a pair of trousers. When he got home, he found that they were about two inches longer. He went to the kitchen, there his mother and two sisters were doing housework. He said to them, "The new trousers are too long. Could one of you help me to shorter them by two inches?" But they were too busy. They said nothing and were still working. After his mother finished washing all plates, she shortened the trousers by two inches. Then one of his sisters remember his trousers and shortened them by two inches. When the other sister came back home from cinema, she also remembered the new trousers. "I nearly forgot that." She thought. Then she shortened them by two inches. Options: A only one sister B two brothers C two sisters D a brother and a sister Answer: C two sisters Question:???
output answer: He had _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: In northern China winter is long and cold, lasting from December through March. You can often see snow. Summer lasts from May through the end of August. The best time to visit northern China is spring and autumn. The days are warm but the nights are cool. Winters in central China feel colder than they look. You will seldom see snow. Winters are short, lasting from January to the end of March. Summers are long hot and humid, lasting from April through September/October. In spring flowers are blooming and the tree's leaves turn green so there is an air of freshness. However, autumn usually sees clearer skies, and it rains a little. It is very wet in the south and high temperatures last for a long time. Winter from January to March, is short but can feel very cold. But it doesn't snow. Summer through September is the rainy season where temperatures and humidity reach highs. In autumn the heat and humidity weather stops. There is always a chance of rain. Options: A May B April C June D January Answer: B April Question:???
output answer:
Summer in central China starts in _ and usually finishes up in September or October.