You are given an English sentence with a blank, and you need to predict the missing word. After completing, the whole sentence should be gramatically correct and non-ambiguous.

Example Input: matthew went to bright river we're getting a little boy from an orphan asylum in nova scotia and he's coming on the train tonight if marilla had said that matthew had gone to bright river to meet a kangaroo from australia missus rachel could not have been more ____
Example Output: astonished

Example Input: marilla's ____ twitched understandingly she had expected missus rachel up she had known that the sight of matthew jaunting off so unaccountably would be too much for her neighbor's curiosity oh no i'm quite well although i had a bad headache yesterday she said
Example Output: lips

Example Input: marilla and matthew cuthbert of all people adopting a boy from an orphan asylum well the world was certainly turning ____ down she would be surprised at nothing after this nothing
Example Output:
upside