As teachers, we feel         our duty to teach our children to be good wherever we are.

 When the Greens moved into the house last week, ____was at sixes and sevens, so they did a big cleaning.

I would rather buy a house in the suburb than ____ in the city. 

My friends, after they heard what had happened to me, _____ said it sounded like an adventure.

Generally speaking, that city is ___ crowded than ___ in the same area.