I am only able to look at nature through dirty curtains hanging before very dusty windows请问为什么用hanging?hanging是现在分词,表示主动,窗帘应该是被悬挂,不是应该用过去分词hung吗?

you see,i am only able to have a “dog helper” because of your kindness! i am only able to look at nature through dirty curtain hanging before very windows i am only able to have a dog helper because of your kindness.这里怎么会用only I am only able to look at nature through dirty curtains hanging before windows 为什么用 hanging sorry ,i am not able to buy the coat ,for i have only two dollars ____.A.leave B.left C.leaving D.to leave I am sorry that I () able to phone you yesterday. I will be able to为什么要用be而非I will am able to I am very sorry to answer your e-mail only now. Off course, I remember you. I think you are able to求翻译!I am very sorry to answer your e-mail only now.Off course, I remember you.I think you are able to prepare the entrance competition fo CRR in i will help you if i _______ A.am able B.will be able C.can be able to D.am able to i am only able to have a dog-helper because fo your kind donation这是九年级第八单元reading的一句话,这里only ,是什么用法呢,only如何翻译,我觉得only在这里可以不要. I am able to protect you and be fond of Sorry,I am not able to answer everything. I am able to draw 这句话对吗?She is able to sing I am only want say hello to _you_he is able to skate,but I am. A Both,and B Not only,but also C Either,or D Neither,nor I am only able to look at nature through dirty curtains hanging before very dusty windows 啥意思?如题这个句子啥意思? ___ you ___ he is able to skate ,but I am.A.Both,and B.Not only,but also C.Either,or D.Neither,nor I am only able to look at nature through dirty curtains hanging before very dusty window中hinging.和before什么意思 做什么成分