He must have had an accident, or he here then.
There is no light in the room. They must have gone to the lecture.__________?
If you keep on your research, you’ll find out the result _______.
A reading room is _______ you can read newspapers and magazines as well as books.
The beach is _________ walking distance of my house.
I said we’d be there by seven. Do you think we’ll ________ it?