The key answer of exercise 4

a)

• People → a man and a woman
• Clothes → ski trousers and jackets, gloves, boots, googles (man - blue and purple; woman - orange)
• Weather → cold, snowy; winter time
• Place → a snow-covered mountainside
• Activities → skiing down a mountain

b)

In the picture I can see a man and a woman. Both of them are wearing ski trousers and jackets, gloves, boots and googles. The man is dressed in blue and purple and the woman is wearing orange. It looks as through it is a cold, winter's day. They are on a snow-covered mountainside and they are skiing down the mountain one behind the other.