Copertina del libro Into Focus B2

Soluzione del esercizio 5 di Into Focus B2

Esercizi svolti per il libro Into Focus B2 con autore Sue Kay, Vaughan Jones, Silvia Minardi, Daniel Brayshaw

Domanda

Rewrite each sentence in two ways. Begin with the words in brackets.

Soluzione

  1. It is known that most mathematical symbols were invented in the 1500s. / Most mathematical symbols are known to have been invented in the 1500s.
  2. The 17th century is considered to be a high point in the history of mathematics. / It is considered that the 17th century was a high point in the history of mathematics.
  3. It was thought by many teachers that calculators could harm students' Maths skills. / Calculators were thought by many teachers to harm students' Maths skills.
  4. There are estimated to be over 10,000 new Maths graduates every year in the UK. / It is estimated that there are over 10,000 new Maths graduates every year in the UK.