PLEASE PLEASE help with word or preposition to USE?

Could you please help me choose the right prepition and word and if the sentence is OK?

1 The only thing I have to do right now is watch tv. (does this sentence have 2 meanings 1 : HAVE TO DO IT 2 : you have nothing to do but...)
2 I'd do/give anything to play right now.
3 What did you win to be here/ What did you have to win in order to be here today.
4 I'll be in your spot/place/position one day.
5 I wanted to buy it before I saw the cover so I can't let the cover affect my choice/decision.
6 From/of what I've seen so far they look alright.
7 What size are your feet?/ What size feet do you have?
8 I met up with him up the street of the church/from church.

There was a tennis tournament in/on the bahamas.

Thank you