The key answer of exercise 7
The key to exercise solutions in chapter 11 - Did you know ...? for the textbook Outcomes Pre-Intermediate - Student's Book with authors Hugh Dellar and Andrew Walkley from National Geographic Learning
Question
Look at the pairs of sentences and answer the questions below.
Answer
- Passive verbs → was discovered, is repeated, are left, be replaced, is called, was awarded Active verbs → discovered, leaves, repeat, replace, call, awarded
- verb be + past participle form
- In 1 and 3 we know because it is stated after by (1 two Russian scientists, 3 Graphene). In the other sentences we don’t know who does the action.
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