12 sentences (words that are optional or which word or phrase to use)

Could you help me chose the right phrase and let me know if I can leave the brackets in please?

1 These shirts were tailored (so as) to allow her to show her tatoos that were in spots that were hard to show. (What do you think about sentence and is SO AS optional and can you leave it in?)
2 My shirt smells like smoke as it's been in a room where there was smoke/smoking going on.
3 The dogs paperwork is in order so there should be no problem getting it out of the country./no problem as to how we're going to get it out of the country.
4 How many months do I have to keep it on (for)
5 He hate your living guts and it's funny since everyone sees it but you.
6 There are more people with blue eyes than brown it seems/ There are people that have blue eyes than brown.
7 You need to get a sink with a raised edge so as not to wet the floor when doing dishes.
8 Four is the hottest the hotplate can go to. (how would you say this)
9 Make your way to the register as the store is closing.
10 Which switch is connected to which/what hotplate.
11 LA by night is different than LA by day.
12 How many million dollars does 1000 miles of train railing cost for the TGV in France.
13 The price is 20 percent cheaper than that of the market today.
14 Its not so much about technique as it is about your mental. you need to have a strong mental.

thank you

Thanks