非谓语动词/高三/英语 I smell something _ in the kitchen.Can I call you back in a minute?

非谓语动词/高三/英语 I smell something _ in the kitchen.Can I call you back in a minute?
①I smell something _ in the kitchen.Can I call you back in a minute?
A.burning B.burnt C.being burnt D.to be burnt
②At the beginning of class,the noise of desks _ could be heard outside the classroom.
A.opened and closed B.to be opened and closed C.being opened and closed D.to open and close
第一题答案为A,我错选了C.
第二题答案为C.易错选为A.
以下是我的疑惑：
这两题的非谓语动词中,doing/being done/done 三者的区别是什么?我印象中是这样的.
being done 除了特殊情况下（如跟在介词后）都是要体现时态概念的,也就是强调正在发生,
所以这样第二题才选C,而不选A吗?这里的being done 是表示伴随吗?A选项的done 不强调正在进行也不见得错啊?不何不对呢?
而对于第一题,又该如何理解呢?doing不是暗含主动且正在进行的意思吗?但是句子不该是闻到一些东西,被烧,且是正在进行的,这样不就是C了吗?这里的非谓在句中做的是定语吧?
我觉得我主要错在这三种形式的非谓区别不清.求分析!