I'm sorry you ______ so long, but it' ll still be some time before Jim gets back.
I would have come to see you earlier, but I __________ too busy.
With summer coming on, the weather gets hot _________.
In Switzerland, six miles west of Geneva,___________ a collection of laboratory buildings.
America was____________ was first called" India" by Columbus
To everybody's surprise, the fashionable young lady ___________ to be a thief. A.found out B.proved out C, put out D.turned out