[求助]补充题189

Like other educators who prefer to substitute anthologies of short stories or collections of popular essays to dull "basal readers," Ms. Burton emphasizes how important it is to enjoy good literature.

(a) to dull "basal readers," Ms. Burton empm hasizes how important it is to enjoy
(b) for dull "basal readers," Ms. Burton emphasizes the importance of enjoy

答案是B，of后面怎么能跟动词？

那要不就是书里印错了

我说怎么想不通呢