16: the only person left outdoors was a ( boy who was lying flat on his back in a flowerbed outside number four. 18: his appreciate did not endear him to the neighbours who were the sort of ( who thought scruffiness ought to be punishable by 19: he was skinny, black-haired, bespectacled boy who had the pinched, slightly unhealthy ( of someone who has grown a lot in a short space of time. 20: in fact, the only ( he would be spotted was if his uncle or aunt stuck their heads out of the living-room window and looked straight down into the flowerbed below. в скобках первые буквы

Teenage;people;look;way.

1 the Andes are the mountains in the South America.

2 London is the capital of United Kingdom.

3 In summer lots of people prefer to go to south.

4 theCaribbean are situated to  southeast of the USA.

5 They plan to visit several countries during their vacation in … Europe: … France, the Italy, theNetherlands, the Spain.

6 the Saint-Petersburg is considered to be the cultural capital of  Russian Federation.

7 The channel between England and France is called English Channel.

8  Sahara desert and  Kalahari desert are the largest deserts in the Africa.

9 Ann had to cross the Atlantic Ocean to get from the Europe to the Argentine.

10 the Urals are very old mountains and are famous for their mineral resources.

Объяснение:

1 Children usually begin school on the first of September 
2 Last year we  began school on the second of September 
3 Tomorrow we shall begin  our lesson at eight o'clock.
4 The children always wear uniforms when they are at school.
5 -I can't find my sister.
-I'll try to help you.What is she wearing?
6 Are you busy now? What are you doing?
7 It is 4 o'clock. Mike is playing chess now.He always plays chess at 4 o'clock
8 Yesterday I went shopping with my sister .Tomorrow I'll go shopping with Granny.
9 -I am sure he'll come to school tomorrow.
-Has he come to Moscow?
- Yes, he has.
-When did he come?
-He сame two days ago.