( ) I don't know the answer ____the question.

( ) I don't know the answer ____the question. I don't know the answer to the question. 1.-I don't know the answer to this question I don’t know the answer _____ the question.I’ll ask Mr.Hu fo I don’t know the answer _____ the question.A.to B.of C.at D. tong yi ju I don't know the answer to the question. jI'm sorry .I don't know the answer [ ] the question Can you sorry,i don't know how to answer your question? I don't know the......the question I donnot know the answer - ---the question. I don't know __________the question A.what to answer B how t I'm sorry,but I don't know the answer.