题目内容
根据提示，写出下列单词，均为形容词。
not excited; untroubled; quiet c________
solemn; not joking or cheerful; grave s________
without unwanted activity or excitement; calm; untroubled q________
having weight; difficult to lift, carry or move h________
causing fun or amusement f________
having or showing eagerness to mix socially with others; friendly o________
