1 do, help
2 Have you learnt
3 communicate
4 has been doing
5 Are you doing
6 I'm thinking
7 was, couldnt understand what he was talking about
11-c; 12-c; 13-b; 14-b; 15-b; 16-c; 17-a; 18-d; 19-c; 20-b;
21-a; 22-a; 23-c; 24-c; 25-d; 26-b; 27-b; 28-b; 29-a; 30-b;
31-d; 32-c; 33-b; 34-c; 35-a; 36-b; 37-a; 38-c; 39-d; 40-a;
41-b; 42-a; 43-c; 44-d; 45-c; 46-a; 47-b; 48-d; 49-c; 50-d;
51-b; 52-c; 53-d; 54-c; 55-a; 56-d; 57-b; 58-d; 59-b; 60-a.
Nature is an integral part of our lives. We can't simply exist without nature.
We can't live without water, oxygen, trees. Nature is very important for us.
Beautiful scenery of nature, only this beauty is truly spellbinding. So much we do not know about nature.
<span>I think especially beautiful nature in the autumn, when I want to sit on the bench and I enjoy its beauty.
</span>Man and nature are closely related to each other. Nature creates all the conditions for human life, so it is important to live in harmony with it.<span>
We must take care of nature, because we can't exist without it. </span>
1.played 2. spent 3. What were you doing at 2 o'clock last Monday? 4. We didn't meet long ago. Jack was walking along the street when I saw him. 5. built 6. I knew that they were building a new garage. It was not ready yet.
