Which propositions should I use with fit?
1- I fitted a door to/in my house.
2- I fitted a TV on/to the wall of my house.
3- They fitted smoke alarms to/on the ceiling.
Hi, Subhajit—Normally, (2) would be "I mounted a TV on the wall," and (3) would be "They installed smoke alarms on the ceiling." Regarding (1), what are you trying to say? "I fitted a door in my house" would mean that you managed to accommodate the door in your house. Is the door gigantic?