His brother is only six years old. He has difficultythe story books.A. readB. readsC. to r

问题补充：

His brother is only six years old. He has difficultythe story books.

A. read

B. reads

C. to reads

D. reading

答案：

A. read

B. reads

C. to reads

(答案→)D. reading

解析：考查固定结构。Have difficulty (in )doing sth 做某事有困难。选D。