根据句意,选择used to 或 be used to 填空

根据句意,选择used to 或 be used to 填空
1.Lantau Island _________ be the home of many wild animals.
2.My father __________ working hard.
3.I don't think I _________ the life here.
4.There __________ be a tall tree in front of the house.
5.I don't go to the cinema as often as I _________.
6.Linda __________ helping others.