---I called you yesterday evening, but there was no answer. ----- Oh, I’m sorry. I _____ dinner at a restaurant at that time.
What it is to go swimming in weather!
The car over there isn’t . It belongs to .
He worked , but he felt .
—Susan, why are you still here? They are all ready to start. —I’m sorry, but I when to meet.
—I’m sorry, Mr. Wu. I my homework at home. —Don’t forget it to school this afternoon.