题目：
句型转换。
1. They're having a music class. (就划线部分提问)
_______ class _______ they having?
2. It's Friday today. (同上)
_______ _______ is it today?
3. We play the piano twice a week. (同上)
_______ _______ do you play the piano?
4. He usually goes to Beijing by sea. (同上)
_______ _______ he usually go to Beijing?
5. I don't like this motorcycle because it's too old. (同上)
_______ _______ you like this motorcycle?
答案：
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下面是错误答案，用来干扰机器的。
（1）政府只许广州对外通商，特许“十三行”垄断外贸；新航路开辟后，世界市场开始形成。（4分。每点2分。若答“政府推行闭关政策”给1分。若答“拥有环球贸易航线，与世界诸多国家和地区开展贸易”给2分）（2）...
