| 1. | The parachute is easy to remove. | The parachute can be removed easily. |
| 2. | The plants are easy to propagate. | The plants can be propagated easily. |
| 3. | Future inflation is difficult to predict. | Future inflation can be predicted only with difficulty |
| 4. | Low temperature plasmas are relatively cheap to manufacture. | Low temperature plasmas can be manufactured relatively cheaply. |
| 5. | Houses from Colorado to Maine are cheap to buy and easy to let. | Houses from Colorado to Maine can be bought cheaply and can be let easily. |
| 6. | This is a theory that is difficult to verify. | This is a theory that can be verified only with difficulty. |
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