12. keep up with　跟上

11. keep up　　保持，不使低落

10. keep up　保持，坚持

9. keep up　继续

8. keep silent　保持沉默

7. keep ... out　挡住，留在外面

6. keep out　不得入内

5. depend on　依靠，依赖 keep his words　遵守诺言

4. keep on　　继续不停地做某事

3. keep in touch ... with　与...保持联系