modern man who fell into murimw

Well, it depends on the depth of the pit. If it was a shallow pit, he could have just been startled and a bit bruised. But if it was deep, he could be in real trouble. He might be stuck and waiting for someone to rescue him. There could also be other things in the pit like sharp rocks or water that would make his situation worse.

It's very unlikely considering the height he fell from.

I'm not sure. It's possible he survived if he had some sort of lucky break during the fall, but it's also very likely he didn't given the height.

Most probably not. Such a long fall would subject the body to an incredibly high impact force upon hitting the ground, which is almost always fatal.

I'm not sure. It depends on many factors such as the way he landed and the medical help he received.

Most likely not. Falling 19 stories is a long way and would probably cause very serious harm.

It's about an alien who comes to Earth and has various adventures and encounters. The story explores his attempts to fit in and his ultimate fate.

Well, it's hard to say exactly. It could be that he was under a lot of stress and sleep was his escape. Or perhaps he was ill and sleep was his body's way of trying to heal.

He might have got injured or trapped depending on the depth and conditions of the hole.

The outcome depends on various factors. Maybe he was lucky and survived with major injuries that require long-term recovery. Or it could be a tragic event with fatal consequences. We need more information to know exactly.