No one expected house prices to fall, but _____ that's exactly what happened.
—Where did you pick up the stamp?—It was at the post office ________ we worked in the summer vacation.
Who ________ that played a trick on the new English teacher?
Where do you think ________ we can buy that bestseller?
There is no doubt that eating organic food will make you healthier, ________?
It was today's activity ________ let me know the importance of teamwork.