按要求改句子。（1-4小题每空只填一个单词）
（1）The man is a doctor.(划线提问)
                  the                                    ?
（2）He goes to school by bike.(划线提问)
                                   he                to school ?
（3）I am going to learn kung fu.(用 what 提问)
What         you going                            ?
（4）what does she like ?    Singing.(重写)
What                                                 ? Singing.
（5）
（6）