We spent many hours in a pleasantconversation______ how to fish.

Though he studies very hard, ______ his English is not good.

依次填入下面语段中横线处的词语，恰当的一组是（ ）（1）郭先生_________把“你有革命家的风度”，改为“你这革命家的风度”。（2）惊起了宿鸟，打破了_________，也似乎平添了搅扰。（3）一句话来得较丰富，也来得较含混_________。

____ the problem of method is solved, talking about the task is useless

Are you good ________ children—Yes, I think I can help them ________ homework.