You are welcome to answer questions posted in the Ask a Teacher forum as long as your suggestions, help, and advice reflect a good understanding of the English language. If you are not a teacher, you will need to state that clearly at the top of your post. Please note, all posts are moderated by our in-house language experts, so make sure your suggestions, help, and advice house the kind of information an international language teacher would offer. If not, and your posts do not contribute to the topic in a positive way, they will be subject to deletion.
I have seen a book that uses preposition in for legs and face (in face/ in leg). Is it safe to assume that preposition in is used for parts of the body? If not, please give me some guidelines.
I'm afraid that a good bit of it is idiomatic, Vladz, but the preposition depends on the content-- does it seem more 'in'side the body part or 'on' the surface?--
He was wounded in the foot.
He has hair on his foot.
She showed surprise on her face.
I could see it in her eyes.
He is a little long in the tooth.
preposition for body 
Linear Mode
