7. come from　 出生于

6. come down　 从 ...下来

5. come back　 复活

4. come back　 回来，回到...来

3. come at　 袭击，向...扑来

2. come on / along　　 来吧，快点

1. come across　 遇见，发现

13. Searching through the drawer, I came _____ the letter I'd been looking for.

12. A child came _____ to me and showed me the way.

11. Someday you'll come _____ know the mistakes you have made.