# Passives

3D Printer - 2000
Computer Mouse - 1980
Driverless Car - 1960
Electric Car 
Fibre Optics
Smartphones
Solar Cells
Stem Cell Therapy - 1990

# 7.2 

## Discoveries

Smartphones
3D Printer

## Inventions

# Passive Voice

# Unit 7

When the agent is obvious

1.1 Rewrite the sentences in the passive form

A 3D Printer was taken to the international SPace Station by an astronout.
When was the computer mouse invented
Was stem cell therapy used by doctors in the 1990s?
Fibre optics werent installed in my area until last year.
Which company are driverless cars being manufactured by?
Were electric cars demonstrated at the exhibition?

## Task 5

1. have been developed
2. are caused 
3. are delivered
4. can stop
5. are given
6. haven't been kept
7. is being tested
8. have been working
9. will make

## Task 6
1. for
2. by

## Task 7
1. by
2. by
3. by
4. for
5. for
6. by

# Unit 7.3

## Task 1

# Unit 7.4

# Homework

- Unit7 Tasks 2-7
- Unit 7.4 -> Activities 7-10
- Activities 10. Approx. 60-80 word long text.