Answer:
Should be:
Frequently (1) young people find it quite challenging (2) to adjust to a new environment. Many students who have done well (3) in their examinations travel alone (4) to study. Some of them live overseas (5) and find that they miss the familiar (6) surroundings of home. Others settle in quickly (7) and forget that they promised to call home regularly (8). Their worried (9) parents begin to panic. They call late (10) at night or early (11) in the morning to make sure their precious (12) child is safe.
Explanation:
Some of the words could have been used interchangeably, however, if you speak the sentence verbally, it becomes quite easy to spot where each word should go. Hope this helps!
