1.   A loud bang sent all the crabs scuttling across the sand.

2.   I heard a loud bang - it sounded like something had fallen down upstairs.

3.   Suddenly there was a loud bang and all the lights went out.

4.   The firework went off with a loud bang.

5.   The window suddenly blew shut, with a loud bang.

6.   There was a blinding flash and then a loud bang.

7.   There was a loud bang as the bomb exploded.

8.   There was a loud bang outside the classroom, and we all looked up.

9.   There was a loud bang outside the kitchen door.

10.   There was a loud bang, and people started screaming.