Through the economic reform, the economic situation of China _________ much better than it used to be.
27.I would have come to see you earlier, but I __________ too busy.
26.With summer coming on, the weather gets hot _________.
25.In Switzerland, six miles west of Geneva,___________ a collection of laboratory buildings.
24.America was____________ was first called" India" by Columbus
23.To everybody's surprise, the fashionable young lady ___________ to be a thief.A.found out B.proved out C, put out D.turned out