If you want to act like a local, use the back door.

Clearly it was the sort of place where you use the back door, not the front.

Or he could use the door to take him out.

But he could not take any chance by using the front door.

Using the door would have been better, but not as quiet.

Clearly she did not use the door, and he could find no other entrance to the room.

You use the same door, but go to a different place each time.

"It would seem hardly necessary to use the door on the right side at all."

We won't use the front door in case they hear us.

They used the front door rather than leave the back gate open.