How do i prepare for HSKK?

我有HSK5的课件和练习题，我可以发给你。

For the speaking test it is in the Section 3: it is five minutes long and consists of two open-ended response questions (回答问题).
What you cand do is : you can try to memorize several grammar structures appropriate for your level, such as 因为…所以 (because… so), 首先…其次…最后… (first…next…last), or 只要…就 (as long as…then). This will help you to organize your thoughts in a logical way and express yourself clearly during the exam. You can prepare some basic responses in order to use it, also you can practice them many times in order to speak it fluently. There is a hskk pdf dowload page available on the website with different materials. (the 360 sentences in Chinese conversations might be a great tool)
Wish you a good trainning !!!