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Hi teachers. Is this correct English? Would you change anything?

Are you mad at me for not choosing you?

No, I think it's probably a good idea that you leave it to somebody else.

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Is this correct English? Yes.

Would you change anything? No, although it depends on the context in which you say this.

Comments  
Students: We have free audio pronunciation exercises.

The context is that a guy has been in need to see a dentist, but has chosen someone he doesn't know over his good friend who's a dentist himself. Is it ok in that context?

It's not wrong, but I prefer

eg No, I think it's probably a good idea that you go to / have somebody else.