Article: There are a lot of things you can do to help in your community, whether with your mom's chores, or if a friend is upset. Here are some little things you can do to give a helping hand. Be a volunteer. Being in charitable organizations is a great way to help the poor, like giving away food or money. You can also donate money on some charitable website like Tencent Charity. Put yourself in another person's shoes. It can give a strong reason to help someone else if you show your sympathy. It is the best way to show people that you really care about someone. Try to offer first. When people need your help, they'll probably ask you first. But if you have the chance, try to offer to help before they ask you. This will show that you are willing to help from the start. Think about what might happen if you don't help. More people will feel sad if you just leave them when they need you, you don't want to see people unhappy, do you? It's always nice to lend a hand. Question: According to the passage, if you want to help the poor, you can _ . Yes or no, is the answer "be a volunteer"?
No

Article: Jack and Hob are going to high school now . Jack wants to be an engineer .He is going to build roads ,bridges and house. Hob is interested in math and science, but he is going to study medicine , He wants to be a doctor. Kate is good at music .She wants to be an artist .She is going to sing and dance for people .Joan wants to be a woman astronaut .She says ,"I am going to explore space some day ."" What do you want to be ,Alice ?" Joan asks me ,"Oh ,I want to be a teacher .When I grow up ,I'm going to teacher in the countryside ." Each of us is doing our best at school .I am sure we will do something good for our country . Question: _ students are talking. Yes or no, is the answer "three"?
Yes

Article: Two children stood outside the door with old coats. "Any old papers, Lady?" asked one of them. I was busy. I wanted to say no, but I saw that their shoes were broken and wet. "Come in and I'll make you a cup of hot tea." They came in, saying nothing. Their shoes left snow on the floor. I gave them tea and bread to protect them against the cold outside. Then I went back to the kitchen and started my housework again. The silence in the front room surprised me. I looked in. The girl held the empty cup in her hands, looking at it. The boy asked me in a low voice, "Lady, are you rich?" Am I rich? Oh, no! I looked at my old things in my room. The girl put her cup back in its saucer carefully. "Your cups match your saucers." They left then, holding their papers against the wind. They hadn't said thank you. They didn't need to. They had done more than that. The blue cups and saucers were simple. But they said that they matched. The potatoes and meat before me, a roof over our hands, my husband with a job--these things matched, too. I moved the chairs back from the fire and cleaned the living room. The prints of their small shoes were still wet on my floor. I let them be. I wanted them there to remind me how rich I was. Question: It can be inferred from the passage that _ . Yes or no, is the answer "it was snowing outside when the story happened"?
No

Article: When the weather is hot, you go to a lake or an ocean. When you are near a lake or an ocean, you feel cool. Why? The sun makes the earth hot, but it can not make the water hot. Though the air over the earth becomes hot, the air over the water stays cool. The hot air over the earth goes up, then the cool air over the water moves in and takes the place of the hot air. When you are near a lake or an ocean, you feel the cool air when _ moves in. You feel the wind and the wind makes you cool. Of course, scientists cannot answer all of our questions. If we ask "Why is the ocean full of salt?" scientists will say that the salt comes from rocks. When a rock gets very hot or very cool, it cracks , and rain falls into the cracks. The rain then carries the salt into the earth and the rivers. The rivers carry the salt into the ocean. But then we ask "What happens to the salt in the ocean? The ocean does not get saltier every year. " scientists are not sure about the answer to the question. We know a lot about our world. But there are still many answers that we do not have, and we are curious . Question: The main idea of this passage is that _ Yes or no, is the answer "scientists can explain many things, but not everything."?
Yes