句型转换。(5分)
（1）He goes to work on foot.(改为一般疑问句)
________ he ________ to ________ on foot?
（2）I'm going to visit_my_cousin next week.(对画线部分提问)
________ are you ________ to ________ next week?
（3）It comes from the_vapour.(对画线部分提问)
________ ________ it ________ from?
（4）I like swimming.(改为否定句)
I ________ ________ swimming.
（5）Is your pen pal a boy? Is your pen pal a girl？(合成一个句子)
Is your pen pal a boy ________ a girl?