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Today is Saturday. It is seven twenty in the morning. It is fine. Helen and her parents are going to the Great Wall(长城). Helen’s father is a doctor. Her mother is a teacher. Now they’re getting on a big bus. There are twenty-two people on it. Some are English, and some are American（美国人）and Japanese（日本人）. There are four Chinese on the bus. A young woman , she’s a driver. A young man, he’s a guide(导游). They look very happy. They’re going to the Great Wall, too.
根据短文内容，回答以下问题:
1．What day is it today?_________________________________
2．What’s Helen’s father?______________________________
3．How many people are there on the bus?_________________________
4．How many Chinese are there on the bus?_________________________________
5．将下面的句子翻译成汉语: They look very happy._____________________________