Question

He is writing a novel, so he shuts himself up, ________ to receive guests

1. A.
   refuses
2. B.
   to refuse
3. C.
   refusing
4. D.
   refused

Answer 1

C
：考查分词做状语。因He与refuse构成主动关系，使用现在分词做状语。句意：他真正写小说，所以他把自己关了起来，拒绝迎接客人。故C正确。