这篇文章为园艺新手包含了一些实用的建议。

The article included some practical ___hints for beginner gardeners.

她就如何改进我的演讲技巧给了我一些有用的提示。

She gave me a few helpful ___hints on improving my presentation skills.

你能给我一点关于如何解开这个谜题的提示吗？

Can you give me a ___hint on how to solve this puzzle?