...of time to consider the pros and cons of a single currency... of coins and notes for the area. 我們... *the pros and cons: 事物的利...反覆思考= consider
... are pretty right, I personally think "We must be fair and consider pros and cons" 因為我不覺得只有一個pro nor con, 所以要加s; 反之"the reason" 其實有點多餘. 不加也沒有問題, 而且令句子更爽快.
1.(the) pros and cons of there are always pros... suggestion, I will definitely consider. 關於你的建議 我一定會參考 3...時候 不要投資 3 the setting of the story is dated back...