1. We tried to warm him … the icy road but he wouldn’t listen … us.

2. They are … a difficult situation now, but I do hope they will find a solution … their problem.

3. Her lack … confidence was the reason … her not getting the job.

4. We need someone to look … the children while we are … work.

5. We were dissatisfied … the hotel service, so we complained … the manager.

6. We searched … vain … the missing money.

7. She doesn’t believe … love … first sight.

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1. We tried to warm him up to the icy road but he wouldn't listen to us. Explanation: "Warm someone up to" means to try to make someone like or feel comfortable with something. In this context, it means that the speaker and others tried to make him aware of the dangers of the icy road and to be cautious, but he did not pay attention to their advice. 2. They are in a difficult situation now, but I do hope they will find a solution to their problem. Explanation: "Find a solution to" means to discover or figure out a way to solve a problem. In this scenario, the speaker acknowledges that the individuals are currently facing a difficult situation and expresses optimism that they will be able to find a way to resolve their problem. 3. Her lack of confidence was the reason for her not getting the job. Explanation: "Lack of" means the absence or insufficiency of something. In this case, the person did not have enough confidence, which caused her to not get the job. The lack of confidence negatively impacted her chances of being selected for the position. 4. We need someone to look after the children while we are at work. Explanation: "Look after" means to take care of or watch over someone. The speaker is stating that they require someone to supervise and care for the children while they are away at work. 5. We were dissatisfied with the hotel service, so we complained to the manager. Explanation: "Be dissatisfied with" means to be unhappy or unsatisfied with something. The speaker expresses their dissatisfaction with the service they received at the hotel, which led them to lodge a complaint with the manager. 6. We searched in vain for the missing money. Explanation: "In vain" means without success or without any positive outcome. The speaker implies that they looked for the missing money, but their efforts were unsuccessful. They were not able to find it. 7. She doesn't believe in love at first sight. Explanation: "Believe in" means to have faith or trust in something. In this case, the person does not have faith in the concept of love at first sight. They do not believe that it is possible to fall in love with someone immediately upon meeting them.