Detailed Instructions: 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.
Q: she's a case i ____ say i'm not expecting a girl said matthew blankly it's a boy i've come for he should be here missus alexander spencer was to bring him over from nova scotia for me the stationmaster whistled
A:
should