A part of the body is hidden in each of the following sentences. The first sentence contains "head." Can you find the rest?

1. The ad is for Monday's sale.
2. The tour group can go to either country.
3. My car makes funny noises sometimes.
4. Sarah and Tony are getting married.
5. That casino seems shady.
6. Can't you see that Hank needs help?
7. The sea is so calm out here.
8. Would you like to go surfing?