A. Why do people worry?

- I think people are worried because people always have a desire to do well anything in front of them. ✔​

=> Another way: Your sentence is okay and this is another way of saying it.​

---------> I think people worry because they always have a desire to do well anything in front of them.​

B. Make these sentences into English.

-지금 어디인지 알고 계십니까? : Do you know where we are now? ✔​

-정확한 위치가 어떻게 되십니까? : What is your exact location? ✔​

-아무래도 카메라를 잃어버린 것 같습니다. : I think I lost my camera. ✔​

=> Another way: Your sentence is okay and this is another way of saying it.​

---------> I'm afraid I've lost my camera.​