Jack doesn’t smoke now, but he ______ for almost twenty years

Do you mind if I shut down the radio—_____ The good news will be on the air in a fewminutes

ing ________space is exciting, yet dangerous. There is ________need for both robots and humans for space exploration.

Soon they got to a point wheretwo roads met; they didn’t know _________.

Mike, I am going to Australia with myparents tomorrow. —_________!