_______ we were studying abroad, we learned much about foreign culture and customs

The thief was about to leave the room when the police ______ and caught him.

The mistake I made last week has been a timely reminder of the need for ________ care.[ ]

Her uncle ___ to New York now, he ___ there twice.He’ll be back tomorrow.

The result was not the same ________ the professor had expected, ________ was rather disappointing.