Having checked the doors were closed, and ________all the lights were off, the boy opened the door to his bedroom
Jane was asked a lot of questions, but she didn’t answer of them.
Everything depends on ___ we have enough time.
He is a foreigner, ___ I knew from his accent.
Betty always tells lies,___ her parents find strange.
____ we know now, oceans cover more than 70 percent of the earth.