Professor White has written some short stories,but he is ( )

C
前面讲怀特教授写了一些短篇小说,后面讲他更以戏剧出名.句中讲了两件事,所以用比较级.
前一句可以看作是：Professor White is known for some short stories.
看下列几个短语：
be known for以……出名
be well known for颇以……出名
be better known for 更以……出名
be best known for最以……出名
其中,well是副词,修饰动词known,后面两个短语中的better,best是它的比较级和最高级.副词的最高级一般不加the.
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