What proved to Greg that the grout monster was real? Diary of a wimpy kid book 13

Because of his mother told so and he saw black hair in the bathroom

Explanation:

One day, Susan jokingly tease greg and told him that there is a monster called grout in the bathroom. She said to him that the mosnter is really nasty.

Greg saw a glimpse of gritty hair in the tiles and convinced himself that it's part of grout's body.  He imagined grout as a scary hairy creatures that can freely move even to the smallest space.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.

the last day of school because i didn’t have to go to school the next day