227.
1It never snows in Kenya.
2It seldom rains in this part of the country.
3Why does it always rain when we go for a walk?
4I don't like to work in the garden, especially when it rains.
5It is snowing. Let's stay at home.
6It isn't raining. We can go to the forest.
7It snowed hard in 1995.
8I think it will snow tomorrow.
9The sky is dark. Will it rain?
10Did it rain last week?

220.
1 the North Pole
2 When did you visit North America?
3 cities
4 told him
5 the worst film
6 Have you ever seen
7 invited
8 has
9 David any
10 I am meeting

230.
1 It's a very
2 to Londoners
3 the City
4 Was there much
5 raining
6 It never snows in April
7 It is snowing
8 I have known them
9 I have known them since they were babies
10 When I was a baby, I didn't like to sleep
225.
1 A group of people crossed
2 the River Thames
3 the Houses of Parliament
4 quickly
5 Ok. I will be there at 
6 you will like him
7 will be ready
8 hardly heard
9 There was nothing
10 tell the teacher