（1）When did George buy a small plane？
A.At the age of 25.
B.At the age of 30.
C.At the age of 35.
（2）What happened to Mark one day？
A.George invited him to take his plane.
B.Mark decided to fly the plane himself.
C.Mark and George travelled on a big plane.
（3）How long did George fly in the air？
A.For half an hour.
B.For an hour.
C.For two hours.
（4）How did Mark feel in the air？
A.Relaxed.
B.Surprised.
C.Fearful.
（5）How many trips did Mark take on the small plane？
A.One.
B.Two.
C.Three.