We go to school ____ our bikes every day. [ ]

Where the dictionary? I can’t see it.—I it right here a moment ago. But it’s gone.

______ is no doubt that the media play a major role in influencing people’s opinions.

The plane will take off _________ three hours. I must get to the airport right now.[ ]

It was last year _____ I visited the museum _____ you had visited.