Which of these sentences is correct? Which of these sentences is correct? (Maybe none! ;)) -Everybody has an aim in his life -Everybody has an aim in their lifes -Everybody have an aim in his life -Everybody have an aim in their lifes If none of these are correct, please, tell me how it would be correct. Thanks!!

When can you use the word "people" as plural and when as singular?

Scuba diving It was long since the last time I dived. Last time it was in Mexico, where I dived for first time in fresh water in a Cenote. It was good but less I'd thought. You can see very clearly the stones carved by water, but when you are inside the water for a time, it's allways the same. Really, I don't know if there's any point in paying what is asked for it. Before this occasion, I had dived in the sea, with cold water. I started to do it with a good friend of mine, who is a great instructor as well. When I was in the beginning of my practices, I thought the most difficult it would be to breath only through my mouth and it was right. Exhale through my nose was inevitable, above all, for my past as swimmer. When I could do that correctly, it was all right. I don't need to see lots of fishes and beautiful stones to enjoy the inmersions. The most I like is the feeling of ingravity. You can control when you go up or go down only with your breath, and I liked when I passed close to the rocks.

Overtaking Yesterday, I was riding on bike with a friend by the roads around my hometown. It's known the traffic rule to let enough space to overtake a bike but almost never it is fulfilled. Well, when we went riding in a straigh and narrow road, a car was estayed behind us for a time. I could see the driver didn't be sure to overtake despite nobody come up to us in the opposite direction. It was impossible to overtake as it was due, so slowly the driver was stepping on the grass next to the road. Because of it was a little dangerous, I broke my bike to let him to pass. When the car overtake me, I could see that the car was full of people, amount them, several children. Then, the driver did the same with my friend, who was before me. Really, we were safe, but I think the people in the car weren't. It's really good drivers consider the cyclist on the road, but if everybody did like this man yesterday, damage people keep exist on the road, but they'll be from the cars instead of the bikes!!