1.The boss in still dissatisfied event though our work is next to perfection.
2.Betty has the benefit of a first-class education； therefore, she can get the better of her peers.
A mother plays an important role in a family. We usually associate her image [1.with] love and tenderness. She will try her best not only to take care of her children with care and affection but also [2.to protect] them from harm and trouble. At any rate, she will try to provide a comfortable place for her children and always fell proud [3.of] them no matter they fail or succeed.