Unit 11. It sounds a good idea, but it r_ to be seen whether it will succeed.2. This old vase dates from the Ming D_.3. Our school gave a r_ to our new principal.4. Some articles of f_ were lost when we moved to the new house.5. They succeeded in the experiment on the fifteenth t_.6. There is some e_ to suggest that he was there on the night of the murder.7. In the long journey, he p_ a most amusing companion.8. He p_ to be doing his homework when the teacher came in.9. Her sudden disappearance was a complete m_.10. It is said that the pirates (海盗) buried their t_ on this island.