Present Perfect +-?
1
Sally has seen a kangaroo.
Has Sally ever seen a kangaroo?
She has never seen // hasn't ever seen a kangaroo.
2
They have known each other for 5 years.
Have they known each other for 5 years?
They haven't known each other for 5 years.
3
You have been upset lately.
Have you been upset lately?
You haven't been upset lately.
4
He has passed his driving exam.
Has he passed his driving exam?
He hasn't passed his driving exam.
5
They have moved to a new flat recently.
Have they moved to a new flat recently?
They haven't moved to a new flat recently.
1. People were made homeless and at least 62 people were killed by Hurricane Sandy
2. Their homes were destroyed and left without electricity
3. Subways and tunnels in New York city were flooded by the water of the superstorm
4. The kids were not at school because they were closed as the hurricane brought the season's first snow
5. Emergency shelters were built
6. The topic about climate change was brought back into people's minds
7. The President of the United States was impressed by thousands of volunteers who helped where they could