The airport security has refused him admittance.
The airport security has refused him admittance.
The airport security is refusing him admittance.
The airport security is refusing him admittance.
The airport security refused him admittance.
The airport security refused him admittance.
The airport security had refused him admittance .
The airport security had refused him admittance .
Correct Answer:
The airport security refused him admittance.
The airport security refused him admittance.