Police were called out to keep order at the airport,and___ the arriving planes.A inspectB inspectorC inspectionD inspected

问题描述:

Police were called out to keep order at the airport,and___ the arriving planes.
A inspect
B inspector
C inspection
D inspected

A.
To keep order at the airport
To inspect the arriving planes

A inspect 动词不定式,承前省略了to