Question

---I find the more we study, the more difficulty we have ________ out Maths problems.
---Oh, I agree with you. Maths is more and more difficult.

A．worked

B．work

C．works

D．working

Answer 1

D

试题分析：考察非谓语动词。句意：解决这个数学问题，我发现我们越研究,我们的困难越多。选D，现在分词作状语表示正在发生的伴随性的动作，其逻辑主语为句子的主语。
点评：本题的难点在于不要把we have当成完成时态来理解，前面固定句式内容the more……the more……做find的宾语，现在分词作伴随状语。