( ) (3) 当你想问别人这是什么的时候, 应说:A. What are you doing ? B. What are you work ? C. What is this?
--- What are you doing? ----- I ____ postcards. A. write B. writes C. am writing
We write the address on ____ right of the postcard. A. / B. the C. a
Danny wants ____ a postcard to his mother. A. to send B. sending C. sends
______ is your address? A. What B. Where C. How
_____ she need a computer. A. Do B. Does C. Is