Question

【题目】I am afraid he has some difficulty the chemistry problem．

A. to work on B. to work out

C. in working on D. in working out

Answer 1

【答案】D

【解析】

试题分析：句意：恐怕他解出这个化学题有些困难。have difficulty in doing sth 做某事有困难 work out 解决；算出；实现；结合句意可知，答案为D。