This novel is set in the modern city, San Francisco, so once _______, it will be very popular.
The leader came into the room, __________ by his two assistants.
__________ by the heavy rain, the area was flooded seriously.
The how-to book can be of help to __________ wants to do the job.
The plane crashed in a flash, __________ into pieces.
Bill always seems so confident, but __________ he's extremely shy.