Mary was caught in a traffic jam and by the time she arrived at the airport her father’s plane_______.
At discussion, Jack ____ an idea that they should bring down the price of the bicycles.
Do you know the waste material can be made use ________ this kind of the toy?
She understood what I was talking about, ____ it was the first time we had spoken together.
Mr. Black _____ for Shanghai in a few days. Do you know when the earliest plane ____on Sunday?
That hero who died in the war was so brave that he never _____ to the enemies until death.