He twisted the paper to make a straw.

Thunder roared, and lightning ran.

Molybdenum is an important element in the production of steel.

Electromagnetism is a part of physics that studies the interaction between electricity and magnetism.

I commute by train every day.

This computer is using the latest technology.

He sent me important information by telegram.

The battery ran out, and the light stopped working.

The incandescent light bulb has burned out, so I'm going to buy a new one.

We need to measure the strength of this electric current.