----It’s a long time since I saw Kevin. What has happened to him?----Well, to tell you the truth, he _______ for nearly a month.
You have to wear a helmet and a life jacket for protection, just ____ you fall into the water.
____ is said that the terrible accident happened at midnight.
Paul’s wish is to become a pilot, ____?
Tony likes listening to music, ____ he hates practicing the violin.
In later years, people reported ____ a monster swimming across the lake.