Which of the following words is the example of free morphemes?（

Which of the following words is the example of free morphemes?（ ）
A、men
B、teeth
C、worker
D、anger
【正确答案】：D
【题目解析】：本题考查自由词素。Free Morphemes：They have complete meanings in themselves and can be used as free grammatical units in sentences.本身有完整意思，可以自由独立使用。这样的词有：man, earth,wind,car,anger等。