1 . A________ to what he said, we finally found the address. (根据首字母单词拼写)

2 . Workers will be paid ___________(根据)to the amount of work they do.

3 . A_____________ to the old stories of Iceland and Norway, Eric the Red was forced to leave Iceland because he had committed a murder.

4 . Old people tend to have trouble a__________ to living in tall buildings in crowded cities. （根据首字母填空）