A Colony on Mars

What change needs to be made in sentence 6?

• Change 'Although the idea' to 'The idea'

• Insert a comma after 'intriguing'

• Change 'something to nothing'

• No change needs to be made in sentence 6.

How should sentence 9 be changed?

• Change 'were' to 'was'

• Change the comma to a semicolon

• Insert a comma after 'people'

• Change 'supply’s' to 'supplies'

What change, if any, should be made in sentence 11?

• Change 'is' to 'was'

• Change 'simply' to 'simpley'

• Change 'to far' to 'too far'

• No change should be made in this sentence.

How should sentence 14 be changed?

• Change 'researchers' to 'researcher’s'

• Change 'institute of technology' to 'Institute of Technology'

• Change 'disagree' to 'disagreeing'

• Sentence 14 should not be changed.

What is the correct way to write sentence 16?

• Chris Hadfield, a retired Canadian Space Agency astronaut, also says there are problems with our current technology.

• Chris Hadfield, a retired Canadian Space Agency astronaut, also saying there are problems with our current technology.

• Chris Hadfield is a retired Canadian Space Agency astronaut. Who also says there are problems with our current technology.

• Sentence 16 is written correctly in the paper.

What change needs to be made in sentence 21?

• Change 'say' to 'said'

• Change 'there' to 'they’re'

• Delete 'with'

• Change 'subsaquent' to 'subsequent'

What is the correct way to write sentence 23?

• Those dollars could be spent on homes for the homeless. And on food for the hungry and research to find cures for diseases.

• Those dollars could be spent on homes for the homeless and food for the hungry. Also for research to find cures for diseases.

• Those dollars could be spent on homes for the homeless they could also be spent on food for the hungry and research to find cures for diseases.

• The sentence is written correctly in the paper.

How should sentence 24 be changed?

• Change 'we take care' to 'you take care'

• Change 'our own planet' to 'our on planet'

• Change the period to a question mark

• Sentence 24 should not be changed.