问题描述：
英语翻译
i don't know how i can learn english well 同义句转换
it helped a lot 反义句转换
we don't know where we can buy that CD.同义句转换
they are listening a radio programme.the programme is about the history of music.(合并为一个含定语从句的复合句)
i don't know how i can learn english well 同义句转换
it helped a lot 反义句转换
we don't know where we can buy that CD.同义句转换
they are listening a radio programme.the programme is about the history of music.(合并为一个含定语从句的复合句)
问题解答：
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