後ろのタワーと一緒に写してほしいって英語でなんて言うの？

To say to get something 'in' is to ask them to include it into the picture. You should open with please as you are asking for a favour.

All of these lets the person taking the picture to include the tower in the background of the picture. All of these get the point across and saying please will make the photographer sure to add the tower in the background :)

When you've asked a stranger to take a picture of you and want them to include a building/tower behind you, then you can say: -Please include the tower behind (us). -Thanks for taking the picture for us. Please include the tower in the background.

"Please make sure..." is a firm but friendly way of asking someone to check that something is carried out correctly. "Please make sure the door is shut when you leave home!" using "Could you..." makes the request a little softer and more polite.

"Please get the tower in the photo!" Beginning with "Please" is polite and a nice way to start your request. You could also ask, "Please center the tower behind us in the photo." "Center" - to get an item in the middle of a photo, etc. "Could you get the tower behind us in the photo also?" "Could you" - is this possible to do. "Also" meaning you would like both the people and the tower in the photo!

Using "could" is a polite way to ask for a favor, especially from someone that you don't know. When talking about capturing something in a picture, we use the verb "get." I hope that this helps. :)