Learn the English Phrases "to be in the know" and "For all I know..."

Read along to practice your English and to learn the English phrases TO BE IN THE KNOW and FOR ALL I KNOW...In this English lesson, I wanted to help you learn the English phrase "to be in the know". When you are in the know, it means that you know something is going to happen. Here's an example. If I was planning a surprise birthday party for my mom and if someone said, who all knows about this? I could say, well, my brother and sister are in the know. That means that they know that this part...