The key to exercise solutions in chapter Workbook 9 - Animals and us for the textbook Performer B1, Vol. 2 with authors Marina Spiazzi, Marina Tavella e Margaret Layton from Zanichelli
Question
Turn the sentences from passive into active.
Answer
Lots of tourists have photographed this bear.
Scientists are using mice to make experiments.
Hunters had chased that rhino for days before they killed it.
Freezing temperatures might kill birds.
You can't find the ladybird in all habitats.
Spiders control insect numbers in a natural way because they eat many of them.
Visitors who see a red deer in Richmond Park should keep their distance.