修正寫給BBC的feedback句子

Question

我常使用BBC網站做為我學習英文的工具，但我發現網站有一些問題，因此寫了comment給他們，想想實在太斗膽了，因為我後來發現我所使用的句子可能有些文法上的錯誤（雖然他們看的懂，也回信給我了），想請英文達人幫我指導一下，謝謝。
Comments:
I found a lots of mp3s which downloaded from BBC are not maintained the same volume, could you please improve this? Thank you very much!

Answer 1

照您的句子修改:

I foundthat lots of mp3's which were downloaded from BBC are not at the same volume level.
Could you please have them fixed?

灰色部分可以省略.

Answer 2

I found a lot of mp3 files available at BBC website for downloading do not share the standardized volume level. I will be delighted if situation can be improved. Thank you very much!

Answer 3

003 good

Answer 4

I have found that a lot of MP3s which downloaded from BBC website do not have the same quality of volume. Could you please improve this. Thank you very much!

Answer 5

I found the volume of a lot of mp3s (which were) downloaded from BBC are not the same. Could you please improve this? Thank you very much!

這是我修改的。看內容您要說的的是mp3的音量不一樣大聲，所以在子句裡面，您的主詞應該是 the volume of a lot of mp3s，那 （which were) downloaded from BBC 這邊只是用來補充說明用的形容詞子句， （which were) 可以省略，其他應該沒啥問題。

PS：其實語言的功用就是在溝通，所以，人家懂就好了，別太在意文法啦。