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Fill in the gaps with the preposition in or the expressions above in
the appropriate form:

1. The portrait was painted ___ oil.
2. Yesterday Ann was dressed ___ white.
3. He felt at that moment he was ___ love with the whole world.
4. They searched everywhere, but it was ___ vain.
5. ___ his ___ it was too late to publish this article.
6. The doctor advised her not to sit ___ the sun so long.
7. Everybody knew that Helen was ___ love with Bob.
8. He liked to run ___ the open air every spring.
9. She is interested ___ some collections of minerals.
10. They always keep everything ___ secret from the others.
11. He is ___ need of money. Can you lend him some?
12. ___ their opinion I am a fool to help you.
13. He tried to lift the heavy log, but it was ___ vain.
14. Ann did not know what to do ___ these circumstances.
15. They are interested ___ these problems.
16. He has no interest ___ music.
17. ___ fact we did this work ourselves.
18. They stood ___ the sun too long. The sun was pitiless ___ the heat.

1. The portrait was painted _in__ oil. 2. Yesterday Ann was dressed __in_ white. 3. He felt at that moment he was _in__ love with the whole world. 4. They searched everywhere, but it was __in_ vain. 5. __In_ his opinion it was too late to publish this article. 6. The doctor advised her not to sit __in_ the sun so long. 7. Everybody knew that Helen was __in_ love with Bob. 8. He liked to run __in_ the open air every spring. 9. She is interested __in_ some collections of minerals. 10. They always keep everything __in_ secret from the others. 11. He is __in_ need of money. Can you lend him some? 12. __In_ their opinion I am a fool to help you. 13. He tried to lift the heavy log, but it was __in_ vain. 14. Ann did not know what to do _in__ these circumstances. 15. They are interested _in__ these problems. 16. He has no interest __in_ music. 17. _In__ fact we did this work ourselves. 18. They stood _in__ the sun too long. The sun was pitiless _in__ the heat.