-- I have great in learning math and I’m so worried. Could you help me? Sure. I’d be g

问题补充：

-- I have great in learning math and I’m so worried. Could you help me?

-- Sure. I’d be glad to.

A. trouble

B. interest

C. joy

D. fun

答案：

(答案→)A. trouble

B. interest

C. joy

D. fun

解析：本题的含义是我很担心应该是在学习上遇到了问题，trouble表示问题或麻烦的意思，故本题选A。