Sure, here are the correct forms of the words for the sentences you provided:

1. Mary is sailing across the **skirts** of London.
2. I prefer to live in an apartment on the **hands** of money and smiled.
3. Jerry picked up a **plane**.
4. It’s a kind of blue colour, but a bit **greenish** too.
5. Harry writes for the theatre, but he is not only a **playwright**.
6. The customs official was accused of **corruption** (or **bribery and corruption**).
7. A shelf fell on Jim's head and knocked him **senseless**.
8. Paul doesn’t just like to be clean. He is obsessed with **cleanliness**.
9. We expected a good **turnout** for the meeting, but only a few people turned up.
10. The building has fallen into **disrepair**.
11. She is **disrespectful** to her father and that’s why her boyfriend left her.
12. The **underlying** causes of the problem are widely known.

Feel free to ask if you need further assistance or clarification!