Cover of the textbook Performer B2 - Student's Book

The key answer of exercise 4

The key to exercise solutions in chapter 7 - Grammar 1 for the textbook Performer B2 - Student's Book with authors Marina Spiazzi, Marina Tavella, Margaret Layton from Zanichelli

Question

Correct the mistakes in the sentences. Be careful: one sentence is correct.

Answer

  1. Thankfully, many health problems have been solved by important medical breakthroughs.
  2. More observations into water on Mars will be carried out by NASA.
  3. People are asked not to smoke anywhere in the building.
  4. The first electric car was developed in 1891 in the USA.
  5. ✓
  6. Any adverse reactions to the drug could be observed, analysed and classified by that famous researcher.
  7. A meeting will be held tomorrow to discuss medical advances in lung transplants.
  8. Pure gold is so soft that it can be moulded with your bare hands.
  9. Einstein was asked to be the president of Israel when the Israeli president died in 1952.
  10. The best and brightest engineers are currently being told to develop more sustainable materials.