— Is there any possible way to help the children get rid of such a bad habit?— To be hones

问题补充：

— Is there any possible way to help the children get rid of such a bad habit?

— To be honest, it’s very hard, but we on this problem.

A. work

B. worked

C. are working

D. were working

答案：

A. work

B. worked

(答案→)C. are working

D. were working

解析：考查时态，句意：有什么可能的方法帮助孩子们摆脱这种坏习惯吗？说实话，非常困难，但是我们正在从事这个问题。根据语境从事这个问题，指的是现阶段进行的动过，所以用现在进行时态，故选C。