Underline the correct preposition.

Instructions

Underline the correct preposition in each sentence.

Sentences:

1. Drinking too little water can lead to headaches.
2. Don't put any milk in Jason's coffee; he's allergic to all dairy products.
3. How do you manage to keep in such good shape?
4. Samantha still hasn't recovered from her bad cold.
5. It is important to use sunblock on your skin to protect it from sunburn.