| 1 | It really took a lot of effort to install this machine. | |
| 2 | He can read reference books in English without difficulty. | |
| 3 | It's hard to work this soil with such an old spade. | |
| 4 | The child stumbled through a piece by Chopin. | |
| 5 | On the plane to Rome, he was already struggling. |
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