Choose the proper variant.

1. The airport officials agreed to engage ...
the security checks this afternoon.

2. The airport security cannot distinguish most homeless people ...
passengers.

3. She put ...
a brave face as she prepared to sleep on the park bench for the night.

4. The terminal quietens ...
around 9 pm when most of the shops close.

5. Jane would like to reconnect ...
her relatives but is afraid after so many years.