Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
Drug manufacturing is the most（ ）business in some countries. (profit)
【正确答案】：PROFITABLE
【题目解析】：
根据前文is the most说明空格处应该填形容词，profit的形容词形式为profitable赚钱的，且符合句意。
句意：在一些国家，药品制造业是最赚钱的。