Question

this is什么than his sister

Tom always plays the MP5 much ___(loud)than his sister.我觉得填louder行,loudlier也行,请具体回答

Answer 1

此空肯定是填一个 副词 形式的,来修饰 play.
专家是这样解释louder 和 loudlier 的区别的,你看看：
1.louder是形容词loud的比较级,在句中一般充当定语（放在名词前）,或充当表语（放在系动词后）,或充当补足语.
如：Can you answer the question in a louder voice?（louder修饰名词voice做定语）
你能用更大的声音回答这个问题吗?
The sound of this radio is louder than that one.（louder放在系动词is后面做表语）
这台收音机的声音比那台收音机（的声音）更大.
Why not make your voice louder?（louder放在宾语your voice后面做宾语补足语）
2.而loudlier是副词loudly的比较级,在句中一般只做状语,修饰动词（短语）,不过loudly的比较级一般用more loudly,loudlier很少用.
如：Please tell the story loudlier.
= Please tell the story more loudly.
请更大声地讲述这个故事.
loudlier为副词loudly的比较级,在句中做状语,修饰动词短语tell the story.