三、对下列句子中画线部分提问,变成特殊疑问句 1. This is my book. 2. He goes to school at six . 3. My sister went home by bike yesterday. 4. The students are studying English in the classroom. 5. His uncle is forty. 6.These are our trees. 7.My brother has six apples. 8.My sister went home on foot yesterday. 9.The students are studying Chinese in the classroom. 10.The His uncle is thirty