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.

Input: Consider Input: peter had asked him of course for matthew cuthbert had never been known to volunteer information about anything in his whole life and yet here ____ matthew cuthbert at half past three on the afternoon of a busy day placidly driving over the hollow and up the hill

Output: was

Input: Consider Input: and although he found it rather difficult for his slower intelligence to keep ____ with her brisk mental processes

Output: up

Input: Consider Input: and yet ____ manners showed the effects of a sort of education if not a complete one
Output: his