Passive Reporting Structures Test A

The Arabic numeral system _____ in India.

• is thought to have evolved

• is thought to evolve

The term ‘mathematics’ _____ by Pythagorus.

• is known to have been invented

• has been known to be invented

_____ that the idea of numbers evolved gradually over time.

• There’s thought

• It is thought

It _____ that mathematics contains the answers to all questions.

• could argue

• could be argued

_____ early civilizations developed different ways of writing down numbers.

• It has known that

• We know that

Ancient Egyptians are considered _____ to the development of mathematics.

• to contribute

• to have contributed

Greek mathematics _____ with Thales of Miletus.

• is thought to have begun

• has been thought to begin

_____ both these theories are true.

• We may believe that

• It has believed that

They weren’t _____ in this case.

• thought to be involved

• thinking to have been involved

You are _____ for your exams in the summer.

• expecting to have studied

• expected to be studying