a)1B, 2E, 3D, 4C, 5A
b) It was getting late and we decided to settle in a town near the river.
Only the strongest can survive the freezing winters of Iceland.
My grandma grows different crops in the country house such as tomatoes.
Our ancestors used to hunt for food in tribes, but never alone.
I won in а contest and my parents decided to have a humungous feast.