Study sentences a-f. Then choose the correct options to complete the rules.
a. It’s good to do something that challenges you.
b. You’ll be with people who have similar interests.
c. You’ll visit some amazing destinations where the only inhabitants are wild animals.
d. There are adults on board whose job is to teach you about sailing.
e. That’s something which I’m worried about.
f. People that apply must be hard-working.