______ not to miss the flight at 15:20, the manager set out for the airport in a hurry.
It_____we had stayed together for several weeks_____ I found we had a lot in common.
You_____ all those calculations! We have a computer to do that sort of thing.
—_____I stay with you? — Well, I would rather you_____me alone for a while.
Mr. Black is a careful and experienfed engineer, so he is often _____ to finish some challenging tasks.
China is a peace-loving country and _____no circumstances _____ first use nuclear weapons.