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Parts 1 and 4 (a)
Parts 1 and 4 (b)
Parts 2 and 3
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Mosaic 2 Grammar, 4/e
Patricia K. Werner
John P. Nelson
Breakthroughs

Parts 1 and 4 (a)

Change active sentences to passive ones and passive sentences to active ones. For passive sentences, include an agent only if necessary.



1

My dog bit the mailman.

2

Research is being done electronically by hundreds of thousands of students.

3

Samuel Morse invented the Morse Code.

4

New discoveries are made by inventors every day.

5

Technology will control our lives.

6

From about 1850 to 1910, day-to-day life was altered by many technological advances.

7

We could conserve more oil today.

8

More oil could have been conserved in the past.









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