Passive reporting structures (Focus 4,7.5)

They _____ countless opportunities for mathematicians.

The Arabic numeral system _____ in India.

The term "mathematics" _____ by Pythagoras.

_____ that the idea of "numbers" evolved gradually over time.

It _____ that mathematics contains the answer to all questions.

_____ early civilizations developed different ways of writing down numbers.

Ancient Egyptians are considered _____ to the development of mathematics.

_____ both these theories are true.

They weren't _____ in this case.

You are_____ for your exams in the summer.

It _____ the universe is nothing more than a mathematical model.

Algebra _____ as a branch of mathematics in the 16th century.

We _____ algebra originated in ancient Babylonia.

_____ evidence in favour of this hypothesis.

Four billion people _____ the Internet by 2023.

This hypothesis _____ many centuries ago.