Choose the best answer

Facebook was built on the _______________ of earlier social network sites like MySpace and Bebo.

Choose the best answer

Robots save workers from ______________ dangerous tasks.

Choose the best answer

With the advance of the science and technology, our life changes greatly in various _________.

Choose the best answer

My brother is very good at natural_______ subjects such as Chemistry and Physics.

Choose the best answer

The scientific method is a way to ask and answer scientific questions by making ____and doing experiments.

Choose the best answer

While scientists study how nature works, engineers ____new things, such as Products, websites environments, and experiences.

Choose the best answer

Terrorists are using modern technology _________ their destructive work.

Choose the best answer

In Science, you should repeat your___ several times to make sure that the first results weren’t just an accident.