It is _____ to fly an airplane at three thousand miles an hour.
When did scientists fly there to watch?
Our company has built a new ship in Hamburg and I am going to fly there to ().
Though its wings look extremely ______, the butterfly is ______ enough to fly as high as 7000 feet.
In fact, the Englishman who tried to fly _____.
You can fly to London this afternoon _____ you don’t mind changing the plane for Paris.
You can fly to London this afternoon _____ you don’t mind changing the plane for Paris.
It is _____ to fly an airplane at three thousand miles an hour.
In fact, the Englishman who tried to fly _____.
Why did Jacky fly to Sydney?