Look! The ground is wet. It must have rained last night, ________?
Personally I prefer to stay up ______at night, but not ______I’ll have to drive to work the next day.
Cathy______the knowledge of radio just by staying around the radio station.(唐山市)
The______flight CA9525 for 11∶30 a.m.is to be put off due to the stormy weather.(福建省)
-Did you enjoy the movie?(福建省) -Sure,it is______a beautiful country town with a variety 0f cultures.
-Will Daniel come to our gathering? (福建省)-______not,for he is much too busy with his research work.