Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
My shoes were old and somewhat beaten-up, but very（ ）. (comfort)
【正确答案】：COMFORTABLE
【题目解析】：
本题考查名词的形容词形式。
空格处的词修饰名词shoes（鞋），所以应该是形容词形式。comfort：舒适，其形容词形式为comfortable。
句意：我的鞋子很老，有点破旧，但很舒服。