Question

【题目】— Have you solved your problem?

— I’ve kept on thinking about that matter__________, but I have had no idea.

A. at times B. some time

C. at a time D. all the time

Answer 1

【答案】D

【解析】

试题—你解决了你的问题了吗？—我一直在考虑这个问题，但我还没有主意。A. at times有时； B. some time一段时间； C. at a time一次； D. all the time总是，一直，根据句意此题选D。