Hello. I'll be grateful for some help.

1)Is it possible to say: "peace in all the world" or is it "in the whole world"?
2)Do you think it's possible to say: "a candidate for president" or "candidate for the presidential post" or "candidate for the President's post"?
3)Do you think it's natural to say:"I think an outright victory in the presidential elections in Venezuela will be won by Chavez" (I mean, is Passive OK?)
Thank you very, very much for help.

1. Either way is fine.

2. Any of those will be fine. Also "candidate for the presidency" ...

3. It's OK, but the sentence would be better if you phrase it in the active voice rather than the passive.

Hello! I'm here to help you. Let's break down your questions one by one:

1) Regarding the phrase "peace in all the world" or "in the whole world," both options are grammatically correct, but they convey slightly different meanings. "Peace in all the world" suggests a desire for peace to exist in every part or region of the world. On the other hand, "in the whole world" emphasizes the entirety of the world as a whole. The choice depends on the specific context and intention of the message.

2) Yes, all three options you mentioned are grammatically correct and convey similar meanings. "A candidate for president" is a standard and commonly used phrase. "Candidate for the presidential post" and "candidate for the President's post" are more specific in terms of the position sought, but they can be used interchangeably. Again, the choice depends on personal preference and the context in which the phrase is being used.

3) Yes, it is natural to use the passive voice in your statement: "I think an outright victory in the presidential elections in Venezuela will be won by Chavez." The passive voice is often used to shift the focus from the doer of the action (in this case, Chavez) to the action itself (the victory being won). Passive voice can be used when the doer of the action is either unknown or less important in the context.

I hope this helps! Let me know if there's anything else I can assist you with.