用do,does,doing,did填空.
1.what are you______?
I'm writing a letter to my father.
2._____you like my postcard?
yes,I like it very much.
3._____he have a kite?
No,he_____.
4._____Tom go to school yesterday?
yes,he____.
5.what can you_____on a train?
I can look out of the window.