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66d Re-write the sentences. Use the passive.

0 For a long time, they recorded music on vinyl records.
For a long time, music was recorded on vinyl records.
1 Nowadays, they release albums on CDs.
Nowadays, aIbums ......................................................
2 They developed the CD in the 1980s.
The CD .....................................................................
3 People use CDs to store music or computer software.
CDs .................................................................
4 They make CDs from plastic and aluminium.
CDs ...........................................................
5 They have sold billions of CDs in the last twenty years.
Billions of CDs .......................................................
6 Maybe one day people will download all music from the Internet.
Maybe one day all music .......................................................
7 But probably people will buy CDs for a few years to come.
But probably CDs ......................................................................

67 The passive + by

67 a Re-write the sentences. Use the passive and by + agent if necessary.

0 George Lucas made Star Wars. Star Wars was made by George Lucas.
1 They speak three languages in Switzerland. ....................................................................
2 Thieves once stole the FIFA World Cup. ....................................................................
3 Alexander Fleming discovered penicillin. ....................................................................
4 About 1,500 people have climbed Everest. ....................................................................
5 They award the Nobel Peace Prize every year. ....................................................................
6 They have discovered water on Mars. ............................................