We sometimes find that we sit in front of a TV set without thinking anything. It is very important for us to select good TV programs. We must try to make the vest use of it.

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What does the word 'it' in the last sentence refer to? (Before this passage there were good things and bad things of watching TV.)

I think you mean "best use of it," right?

I guess "it" would refer to television in general, although I think the pronoun in the last sentence should be "them" since "programs" seems to be the closest and most logical antecedent.

We sometimes find that we sit in front of a TV set without thinking anything. It is very important for us to select good TV programs. We must try to make the best use of it.

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Thank you for yoiur help.

You're welcome!

To determine what the word 'it' refers to in the last sentence, we need to look at the context of the passage. In this case, the preceding sentences mention the importance of selecting good TV programs and making the best use of something. From this context, we can infer that the word 'it' refers to the TV set discussed earlier in the passage. The sentence is suggesting that we should try to make the best use of the TV set by selecting good TV programs.