Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
Smile，nods and （ ）faces added to the general pleasant atmosphere in the city. (cheer)
【正确答案】：CHEERFUL
【题目解析】：
本题考查的是常用名词的形容词。
由faces可知，空格处应填形容词，cheer的形容词是cheerful。
句意：微笑，点头和笑脸为这个城市增添了愉悦的氛围。