as I'm having my TOEFL tomorrow I will appreciate your quick response on the following two questions related to the Writing:
1. Should one use the British English or American English spelling of some words - humor vs. humour, color vs. colour, center vs. centre etc.? Does this make a difference?
2. Are short forms like That's why, aren't, and other appropirate or should one write them as two separate words - e.g. That is why, are not etc?
Thanks in advance
Thank you very much for reading this post till the end! Kudos?