Послушайте что сказал дейв, о том чем его семья занималась

1. There are three rooms and Akitchen in our new flat. 2. My new dress is made of NO ARTICLE silk. 3. If you want to
write something on THE blackboard, you must have A piece of NO ARTICLE chalk. 4. Are
there any pupils in THE classroom? 3. I have A new English book. THE book is
very interesting. 6. There is A garden in NO ARTICLE front of our school. THE garden
is not large, but it is very nice. 7. NO ARTICLE... May is THE fifth month of the year.
8. ..NO ARTICLE. Saturday is THE ... sixth day of the week. 9. .NO ARTICLE.. Sunday is A day of

3 Сомневаюсь на счет 3 blackboad, если на любой доске, тогда будет A BLACKBOARD, если на той, что в вашем классе (конкретной), тогда THE BLACKBOARD - В предложении не ясно о какой именно доске идет речь

1)People have always studied living things in their natural environment. 
2)How does our environment influence our children?
3)I don't think people living in isolation could be happy.
4)Ecologists study what happens to different species of birds and animals.
5)My father's influence on me was great.
6)My interest lies in nature .I am fond of animals.
7)It's not easy it collect information about this species of plants.
8)Mr Brown is 92 years old but he is in good health.
9)What's the number of children in your family?
10)Ecology is a science about our environment.