1.The Whites were very poor at that time and ___ send their

1.The Whites were very poor at that time and ___ send their children to school.
A.are not able to B.could not be able to
C.cannot D.could not
2.The train ___when they ___ to the railway station.
A.left,had got B.left,got
C.had left,had got D.had left,got