I think maths is than Chinese.A. more difficultB. difficultC. hardD. easy

问题补充：

I think maths is than Chinese.

A. more difficult

B. difficult

C. hard

D. easy

答案：

(答案→)A. more difficult

B. difficult

C. hard

D. easy

解析：句意:我认为数学比语文更难。根据句意及句中的than可知，这里表示数学和语文的一个对比，应该用比较级的形式,故可排除C和D。difficult 的比较级应在前面加more。故选B。