There'er two hoops behind the door.（对划线部分提问） -------

Where are the two hoops?
是不是对 behind the door 提问?
那就用how many
Alice doesn't like spring rolls.为什么要用doesn't呐？恕我无知因为like 是一个实意动词，要借助于助动词，主语是第三人称，所以用does.要加油啦！哦，懂了，谢谢These are easy questions.(改成单数句） This is easy question.这样对不对呢？There'er two hoops behind the door.（对划线two提问）How many hoop behind the door?这样对不对呢？辛苦你了谢谢！These are easy questions.(改成单数句） This is aneasy question. 因为question 是一个可数名词，所以改为但是要加冠词。There'er two hoops behind the door.（对划线two提问）How many hoop behind the door?第二个正确的。英语不难学，只要努力就能成功，加油。