Choose the sentences which have a similar meaning to the original ones

The emergency shelter opened a year ago.

• The emergency shelter has been open for a year.
• The emergency shelter has been open since a year.

A great deal has changed in our town since the hurricane.

• There have been lots of changes in our town since the hurricane.
• There have been a few changes in our town since the hurricane.

Few people buy video cassettes these days.

• There aren't many people who buy video cassettes these days.
• There are many people who buy video cassettes these days.

They started watching the documentary when I arrived.

• They waited until I arrived after starting to watch the documentary.
• They waited until I arrived before starting to watch the documentary.

I had never experienced an earthquake before.

• It was the last time I had ever experienced an earthquake.
• It was the first time I had ever experienced an earthquake.