用settle的适当形式填空
①—Why do you look sad?
—There are so many problems remaining ___________.
②With a lot of difficult problems ___________, the newly-elected headmaster is having a hard time.
③Early ___________ in this area lived a difficult life.
④We hope for a last ___________ of all these troubles.
⑤They ___________ in Shanghai last year.
⑥It’s said that Samuel ___________ (settle) the first permanent __________ (settle) in present Canada.
⑦It was a rainy morning and the children, mainly boys with various learning difficulties, refused _______ (settle) for the start of the lesson.