Choose the correct parts of the compound nouns to complete the sentences.

Choose the correct option.

The editor-[off|in|on|by]-chief made the final decision on which articles to publish in the magazine.

A passer-[off|in|on|by] stopped to help me change my flat tire.

The hanger-[off|in|on|by] was trying too hard to impress everyone with his stories at the party.

I'm looking forward to my day [off|in|on|by] next week; I plan to explore a new hiking trail.