How to rotate text fields when creating fillable forms

Hi.

I'm a teacher and I'm trying to create fillable forms for my students. With distance learning and everything, I'm trying to make my forms to be fillable for the kids by online, since most of them don't have a printer. 

However, when trying to create text fields in which students will fill in their answers, I have found that I am NOT able to rotate the fields in order to match the alignment of the space in which they are typing.

The text fields appear straight and don't give me the option to rotate, as it will with any other regular text box. This will become problematic for the kids to have a clear visual of where they're typing their answers and it will look really bad overall. Any idea how to do this? I have attached an example of what I'm talking about.