用所给词的适当形式填空。
1. By the time I got to the bus stop, the bus had already _______ (leave).
2. They _______ (make) a lot of friends since they came to our school.
3. She was so ________ (embarrass) that he didn't know what to say at the moment.
4. They have been _______ (marry) since eight years ago.
5. That's the ________ (end) of the story.
6. The mice all _______ (flee) away when the cat appeared.
7. We _______(learn) eight units by the end of last week.
8. It is three years since he ________ (leave)
9. My sister _______ (watch) TV when I ________ (get) home yesterday.
10. Keep quiet. Dad _______ (listen) to the news now.
