Soluzione del esercizio 1 di Performer B2 - Student's Book

Esercizi svolti per il libro Performer B2 - Student's Book

Soluzione

A

  1. science
  2. vaccines
  3. the appearance and taste of cheese

B

  1. many people
  2. brilliant scientists
  3. the type of bacteria used

C

  1. by
  2. by
  3. by