It was totally by chance they discovered the entrance to the underground palace.
Our class __________ forty-five students, in other words, forty-five students __________ our class.
Mum was against my suggestion of spending the vacation in the mountains while Dad was __________ it.
The audience __________ before TV sets are listening to Yi Zhongtian's stories with their eyes __________ upon him.
The boy insisted that he __________ the glass. He said that he was not there then.
—Sorry, sir. I'm late again. —What excuse will you __________ for yourself this time?