题目内容
5．Who sang ，Nelly or Lisa？（ ）| A． | ；clear | B． | ．more clear | C． | ．clearly | D． | ．more clearly |
分析 谁唱的更清晰，奈丽还是丽莎．
解答 答案：D．考查副词的比较级．句意"谁唱的更清晰，奈丽还是丽莎．"clear清楚的；more clear更清晰的；clearly清晰地；more clearly更清晰地．根据题干Who sang，Nelly or Lisa？可知是谁唱的更清晰，奈丽还是丽莎？应该用副词clearly的比较级，more clearly修饰动词sang．故选D．
点评 理解各个选项的含义及其词性，根据具体内容进行选择．
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