Complete each of the following sentences with a (compound) word derived from the one(s) given in brackets.
Reader's Digest is a （ ）that has one of the highest circulations in the world. (month)
【正确答案】：MONTHLY
【题目解析】：
《读者文摘》是世界上发行量最高的月刊之一。monthly 月刊，名词。