What did you have ___ breakfast? [ ]

Could you tell me.? —Yes, it will start at nine.

The school days are busy enough, yet the Taylors try hard to fit as much as possible _____ their kids’ lives. [ ]

Renshou_________ a lot in the last 3 years. It’s now one of the most important cities in Meishan.

The boy is ____ young to join the army (参军). [ ]