Rewrite the sentences in two ways, using the beginnings in brackets. They estimate there are around three billion users of the Internet. (It… / There…)
It is estimated that there are around three billion users of the Internet. / There are estimated to be around three billion users of the Internet.
Rewrite the sentences in two ways, using the beginnings in brackets. People considered such behaviour to be bad manners in the past.(It…/Such…)
It was considered that such behaviour was bad manners in the past. / Such behaviour was considered to be bad manners in the past.
The Arabic numeral system _____ in India.
is thought to have evolved
is thought to evolve
Greek mathematics _____ with Thales of Miletus.
has been thought to begin
is thought to have begun
_____ both these theories are true.
It has believed that
We may believe that
_____ that the idea of 'numbers' evolved gradually over time.
There’s thought
It is thought
_____early civilizations developed different ways of writing down numbers.
We know that
It has known that
It _____ that mathematics contains the answer to all questions.
could argue
could be argued
Rewrite the sentences in two ways, using the beginnings in brackets. We could argue that the universe is nothing more than a mathematical model. (It…/Theuniverse…)
It could be argued that the universe is nothing more than a mathematical model. / The universe could be argued to be nothing more than a mathematical model.
Rewrite the sentences in two ways, using the beginnings in brackets. We know that algebra was more advanced in Babylonia than in Egypt.(It…/Algebra…)
It is known that algebra was more advanced in Babylonia than in Egypt. / Algebra is known to have been more advanced in Babylonia than in Egypt.
Rewrite the sentences in two ways, using the beginnings in brackets. We know that Pythagoras discovered this theorem. (It… / Pythagoras…)
It is known that Pythagoras discovered this theorem. / Pythagoras is known to have discovered this theorem.
Ancient Egyptians are considered _____ to the development of mathematics.
to have contributed
to contribute
The term 'mathematics' _____ by Pythagoras.
has been known to be invented
is known to have been invented
You are _____ for your exams in the summer.
expected to be studying
expecting to have studied
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