That sounds interesting.I dont's have a soccer ball.合并为一句

It sounds interesting that I don't have a soccer ball
再问： 不对吧！
再答： 这个是形式主语的句式，也可以改为定语从句句式 I dont's have a soccer ball which sounds interesting
再问： 额好难，初一也！
再答： 恩，呵呵，慢慢来，后面会学到的，加油，希望对你有帮助，有不懂得再问我