The man should be excused because he caused the damage _______

This is the first time that I ______ the song Gangnam Style

Pollution is damaging the environment, and the situation is particularly ________ in big cities.

It was about 5 o’clock in the afternoon _______ they had their supper.

The man，suspected________having stolen the jewels of the shop，was missing last night，although he was watched over by the police.[ ]