_______environmental issues, the government will enforce existing regulations.
—Could I ask you a rather personal question? —Sure, __________.
People try to avoid public transportation delays by using their own cars, and this __________ creates further problems.
The __________ look on his face showed that he hadn't expected it.
You didn't use to like him much when we were at school, __________?
Much to my __________, most of the people __________ to the party were old friends.