It depends on what 'this' is. Sometimes you can, if it fits the plot and theme of your story.
Well, it really varies. If 'this' is relevant and adds value to the story, then sure. But if it's out of place or doesn't make sense in the context, it's better to leave it out. You need to consider the overall coherence and flow of your narrative.
It really depends on the platform. Some allow a few, like 5-10, while others might have no strict limit.
It really depends on the platform. On some, you can use up to 10 hashtags, while others might have a different limit.
Well, using something in stories really depends on a few factors. Like how relevant it is to the theme, the characters, and the overall tone. Sometimes, even if it seems interesting, it might not gel well with the rest of the story and could confuse readers.
Yes, you can use past progressive in stories. For example, 'She was reading a book when the phone rang.' The past progressive ('was reading') sets the background action, and the simple past ('rang') shows the interrupting event. It helps to create a vivid scene in the story.
Success stories are real-life examples of people or organizations achieving great things. You can use them for inspiration and to learn from others' strategies and experiences.
Sure you can. It can add realism or be used to represent a character's style or status.
Sure you can. It helps add vividness and build tension in some scenes.
Success stories are accounts of individuals or groups who have reached their goals. They can be used to motivate yourself, find new approaches, and understand what works in different situations.
Sure. For example, 'James drove his sleek BMW 3 Series down the winding road, the engine purring like a contented cat. The red Ferrari 488 that passed him by made him a bit envious, but he still loved his own car.'
For the 'underground civilization' case, first think about the unique features of this civilization. Are they advanced in technology? Do they have a different language? Then, you can introduce a character from the surface world who stumbles upon this underground civilization. This character can be the main protagonist who has to learn about their ways and find a way to coexist or escape. In the 'mystical creature alliance' case, you can create a story where different mystical creatures come together for a common goal, like protecting their magical realm from a dark force. You can develop the relationships between these creatures and the challenges they face as a group.