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Which of the following words does NOT have suffixes?
A、bossy
B、widen
C、happy
D、worker
【正确答案】：C
【题目解析】：该题题干提问四个选项中哪一个没有后缀，A选项有形容词后缀-y, B选项有动词后缀-en, D选项有名词后缀-er,因此答案为C选项。