I think Tom___(know)the answer.

I think Tom___(know)the answer. i want know the answer He doesn't know the answer,I think(合并为一句） I know the answer () the queation. I donnot know the answer - ---the question. I know the answer 改为否定句 英语翻译i know the answer thanks I didn‘t know the answer and( ). I know the answer.(一般疑问句) ______ ______ know the answer? I'm sorry,but I don't know the answer. I don't know the answer to the question. I think the answer is right(改为否定句)