1. The word needed in the first sentence is "world" because it fits grammatically and makes sense in the context. The sentence is discussing something that interests all of us, and the most logical word to complete the sentence is "world" because we are all interested in the world and what happens in it.
2. The word needed in the second sentence is "people" because it fits grammatically and makes sense in the context. The sentence is discussing the importance of the people who bring us the news, so the word "people" is the most appropriate to complete the sentence.
3. The third sentence seems to be cut off, but based on the given text, it is difficult to determine what is being discussed. It is unclear what the phrase "We become experts on other" is referring to. Without further context or information, it is not possible to provide a precise answer. It would be best to seek clarification or additional information to properly complete the sentence.
2. The word needed in the second sentence is "people" because it fits grammatically and makes sense in the context. The sentence is discussing the importance of the people who bring us the news, so the word "people" is the most appropriate to complete the sentence.
3. The third sentence seems to be cut off, but based on the given text, it is difficult to determine what is being discussed. It is unclear what the phrase "We become experts on other" is referring to. Without further context or information, it is not possible to provide a precise answer. It would be best to seek clarification or additional information to properly complete the sentence.