— I hear Prof.Huang will give us a talk ______ the History of Diaoyu Islands this weekend.— That’s great!A. on B. to C. at
When you visit Denmark, you can go to_______ and take photos there.
- What do you think of this film? - Great! I_______ such a wonderful film before.
My uncle______ a farmer. Now he is a driver.
________the end of the story, the main character______.
My parents_______ twenty years ago. They _____for twenty years.