4. Put the verbs in brackets into the correct form. 1. Frank had to get used to ... on the left. (drive) 2. Rick used to ... regular bulbs, but now he only buys energy-conserving ones. (buy) 3. They used to ... a lot when they were younger. (travel) 4. It is difficult for the employees to get used to ... extra hours. (work) 5. They used to ... a lot when they were younger. (travel) 6. It is difficult for the employees to get used to ... extra hours. (work)