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Which alternative do you use? The BOLD is what I think.

1 This movie isn’t worth going to the movies to watch/isn’t worth watching. BOTH

2 You had/have to have been new to a city at one point during your life. BOTH one is PAST perfect one Present perfect.

3 Even when he’s at home, he like to be in style/vogue. in style

4 I’m 2 years his elder/I’m your elder by 2 years. BOTH

5 I am so far from (winning) 75 dollars, I only have 20./I have a long way to go to 75.. I only have 20. BOTH sentences are correct and WINNING is optional.

6 I have a week until/before it starts. BOTH

Thanks
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1 This movie isn't worth going to/isn't worth watching.

2 You had/have to have been new to a city at one point during your life.
3 Even when he's at home, he likes to be fashionable / in style.
4 I'm 2 years older than he/him / I'm his elder by 2 years.-- The first sounded too dated to be used.

5 -- I have no idea what you are trying to say about the source of the money

6 I have a week until/before it starts.
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For number 5.

Lets say you're playing poker and you have 20 dollars and you need to get to 75 dollars.

and you said:

5 I am so far from (winning) 75 dollars, I only have 20./I have a long way to go to 75.. I only have 20.

Are both correct and is winning optional or not?

And for number 1

is it : The movie isn't worth going to. (so you don't add the extra bit?)

Thanks
5-- 'winning' is not optional if no one knows what you are talking about.
1-- Yes