如果你想问“狼在哪里?”你可以怎么问?
A:Where's the wolf?
B:What's this?
你想了解本班同学是否上网,如果上网,那么上网又做什么(比如:玩游戏、聊天、查资料等)?如果就这个问题展开调查,那么
①你调查的问题是____
②你调查的对象是____
③你选择的调查方法是____
④你记录的数据是____
—Chongqing is ____________ than ____________ city in the north of China.
—I think so. It's the hottest city ____________ the southwest of China.