Answer for exercise Grammar 2
The solution for exercise Grammar 2 in chapter 06 - Language focus 1 of Cutting Edge Upper-Intermediate - Student's Book by Sarah Cunningham, Peter Moor and Jonathan Bygrave
Question
Look at the timeline and the sentences in exercise 1b. Choose the correct answers in the rules below and find an example of each one.
Answer
- before - By 5000 BC, people in ancient Mesopotamia had invented the wheel ...
- 'before now' - Today ... we have landed on the moon ...
- before - within 30 years, we will have sent a manned mission to Mars ...