1. Stress should be put on the ___________ (预防) of diseases.
2. She ___________ (结束) her talk with a funny story.
3. This ___________ (假的) leather feels like the real thing.
4. His annual income was ___________ (估算) at ten thousand dollars.
5. I never ___________ (怀疑)for a minute that you were married.
6. We give preference to ___________ (申请人)with some experience.