Complete the word combinations with the suitable prepositions.

Choose the correct option.

What [by|in|on|out|of] earth...?

To be [by|in|on|out|of] flames

A career [by|in|on|out|of] something

To be [by|in|on|out|of] **** the way

Use the word combinations above to complete the sentences.

Write 2–3 words in each gap.

The boy's house was [ ], and he couldn't put out the fire.

Dan learns biology and social sciences to start a [ ] ecological activism.

Jane is arriving soon; she is already [ ].

What [ ] are you doing here?