I'm not sure whether this is the room ________ she left her dictionary.
The manager discussed the plan that they would like to see ______ the next year.
Gun control is a subject ______Americans have argued for a long time.
The astronauts found that ______ the spaceship went further and further into space, it became more and more difficult to control its own movements.
You shouldn’t talk until ________ to.
When I woke up, I found myself ______ in bed and ______ by doctors and nurses.