求助英语语法高手The use of well-chosen nonsense words makes possible

对了,这是避免头重脚轻,makes sth possile ,但是这里的sth （宾语）是：the testing of many basic hypotheses in the field of language learning （中心语是the testing,后面有好多的定语修饰）,太长了,所以把宾语置后了,而把宾补possible放前边来,这样就不至于头（宾语）重 脚（宾补）轻了.
注：如果宾语是一个句子（宾语从句）,就得借助形式宾语it ,即make is possile that.(见过吧?）
感谢你向我们求助,