Before we put the ___________ lights in our front yard, we could barely see anything at night!

The __________ reproduced sounds in a way that had never been seen before.

Which of the following items are shaped like a cylinder?

What is the engine called that makes a train move forward?

Derek held the gate open as the old truck ___________ through before coming to an abrupt stop.

My science fair project was a complete ___________. I couldn't believe it failed to work on the day I needed it to the most!

My friend and I are always trying to think of new electronic ____________ to design and sell, but it is a very hard task!