The old church ___________the first century A.D. is well preserved.A. dates back to B. dated back toC. dating back to D. to date back to
A railway station is no place for a child ________ alone at night.
With much work ________unsettled,the newlyselected president will have a hard time.
He was sitting on the floor ________ by books.
The weather turned out to be fine yesterday. I ________ the trouble to carry my umbrella with me.
My father may have to go into hospital,________ he won't be going on holiday.