1 think we'd better keep to the subject, ______we'll waste our time.
—Can you tell me something about the history of cheerleading? —Sorry, I know nothing about it _________ I read in the magazine.
Jane was writing a letter _________ the other fans were watching a live television program.
We thought Mary would be elected cheerleader, but to _________ she failed.
The student, _________ the first place in the piano competition, is considering _____ abroad to learn classical music.
—Could you do me a favor?—It depends on _________ it is.