Add punctuation: Please choose the clothing sizes you are interested in
A: Please choose the clothing sizes you are interested in?

Add punctuation: Olives prepared or preserved otherwise than by vinegar or acetic acid not frozen in immediate packings of a net content of 5 kg
A: Olives, prepared or preserved otherwise than by vinegar or acetic acid, not frozen, in immediate packings of a net content of > 5 kg

Add punctuation: He continued as Edgar Pierce Professor Emeritus at Harvard commuting daily to his corner office in Emerson Hall for many years after he retired
A:
He continued as Edgar Pierce Professor Emeritus at Harvard, commuting daily to his corner office in Emerson Hall, for many years after he retired.