The answer to your question is read the text and write instructions to explain the last text. I may be wrong but was willing to answer. But can you explain the question a bit more please.?
yea sure I'll help, today why don't we start with greetings?
<h3>
Simple greeting</h3>
In Spanish, they're many ways to greet someone you could say it the simple way: Hola=hello or que tal= what's up! which is mostly used with friends or family
For a full sentence, you can say Hola Como Estas? = hello, how are you?
for a more formal situation.
<h3>
Greeting throughout the day </h3>
In the mornings we say Buenos dias which translates to good morning or good day. In the afternoon we say Buenas tardes= good afternoon.
When it's the evening or later we say Buenas Noches.