1.   Airplanes flew across the sky above us.

2.   Airplanes are flying, trains are rolling, ships are docking.

3.   Airplanes flew over the city spewing disinfectant to stop the spread of disease.

4.   Airplanes fly miles above the nation.

5.   Airplanes could not fly, trucks could not deliver food and farmers could not grow crops.

6.   Cigar looks up when airplanes fly over.

7.   Edith would see the first airplane fly over Paris when one of the Wright Brothers buzzed the Eiffel Tower.

8.   First, of course, the airplane must fly.

9.   How high does an airplane fly?

10.   I think the hole is there so airplanes can fly over the stadium pulling banners advertising restaurants, auto dealers and condoms.