Luckily this has an easy answer! In the US, we normally use a "z" in these cases, and in the UK the "s" is more standard. I'd usually write "realize," "prioritize" etc. because I'm from the US!

I love this one and I've considered creating a video about it! I'd say beat around the bush is similar to irse por las ramas o dar vueltas. In this specific phrase, the implication is that the person is trying to avoid getting to the point of the conversation or maybe avoid talking about a problem. A couple of examples:

•  "Stop beating around the bush and get straight to the point!"

•  "Why are you beating around the bush? Please tell me why you didn't come to my birthday party."

I hope this helps!

This is a great question, and it's just one word in English! I would normally use the word "throughout" in this case. -> "I will work on my project throughout this week." Let me know if you have other questions about this!

General guidelines:

At

• Specific Times: at 7 p.m., at noon, at the moment

• Specific Locations: at the bus stop, at 330 Independence Avenue, at the corner of...

• Specific Events or Holidays: at Christmas, at the party 

On

• Days and Dates: on Monday, on January 18th, on my birthday

• Surfaces: on the table, on the floor, on the wall

• Specific Locations (and streets): on Fleet Street, on the first floor

• Transportation: on the bus, on the train 

In

• Long/longer Time Periods: in 1991, in December, in the 21st century

• Parts of the Day: in the morning, in the afternoon, in the evening (except at night)

• General Locations: in London, in the house, in the park (sometimes there are exceptions)

• Surrounded Areas: in a box, in a room, in the crowd