1. With the _________（科学技术的）development, we are leading a more and more comfortable life.
2. It is well-known that overpopulation is a _______（世界性的） problem.
3. He spent much of his life _______（探测） the wildness.
4. The _______（现实）that we are facing is that there is not enough money to pay for this project.
5. He had a(n) _________（智力）test before entering the class.
