句型转换。 1. The river is about 13 meters long .(对画线部分提问) _____ _____ is the river? 2. Do you have any idea? How big is Shanghai?(一句) Do you have any idea_____ _____ _____ _____? 3. Jim has been to many places in China.(变为一般疑问句) _____ Jim_____ many places in China? 4. The boy is reading an article in the room .(对画线部分提问) _____is the boy_____ _____ _____?