. The theory is of great important ________ the hotter a body is, the more it radiates.
—— Do you know our town at all? —— No, this is the first time that I ____ here.
The manager insisted that the work ____ finished by the end of this month.
—— My son has won the singing competition. ——_________.
We are living in an age ______ many things are done on computers.
—Lucy doesn’t mind lending you her dictionary. —She ________ . I’ve already borrowed one.