week+2+term+4


 * 1) submerging - The submarine was **__submerging__** under water.
 * 2) substandard - The job was **__substandard__** to the task.
 * 3) subnormal - This school was a __**subnormal**__ place.
 * 4) submarine - The **__submarine__** was docking at the port.
 * 5) sub-machine gun - I got shot by a stray bullet from a **__sub-machine gun__**.