Here are the best answers for each sentence:

1. **B. give up**
2. **A. went off**
3. **B. go out**
4. **C. continue**
5. **A. talk**
6. **C. put off**
7. **A. Look out**
8. **B. put off**
9. **B. get over**
10. **C. put off**
11. **D. turn up**
12. **B. arrives**
13. **C. delay**
14. **B. gave up**
15. **C. stopped**

Feel free to ask if you need further explanations!