Use the words to complete the text. nesting boxes, Planting, pollution, voluntary, nests, left Volunteers also build . It is a very important job as there are not so many trees in big cities for birds to build their own . Volunteers learn about the main causes of air and water___ . trees and flowers is also a significant part of their jobs.

1)eco-helpers

2)recycling

3)clean out

4)volunteers

5)the cycle of life

6)ecology

1 nesting boxes
2 left
3 nests
4 pollution
5 Planting

Bill has been abroad only once. He went to Japan two years ago. He enjoyed his trip very much. He stayed in Tokyo and Osaka for a fortnight. At present the company is expanding its business. They are studying tourism and trade in Europe. They are planning trips to East European countries. They hope very much on successful business.
Билл побывал за границей только один раз. Он ездил в Японию два года назад. Поездка ему очень понравилась. Он пробыл в Токио и Осаке две недели. В настоящее время его компания расширяет свой бизнес. Они изучают туризм и торговлю в Европе. Они планируют поездки в страны Восточной Европы. Они очень надеются на успех своего бизнеса.

1. run - ran; see -saw; ride - rode; have - had; go - went; swim - swam; read - read; do - did
2. 1) Did  you   go  to  the  cinema  last  week? - No, I didn't. I didn't go to the cinema yesterday.      
2) Did your  friend  ride  a  bike  when  she/he  was  5?  - Yes, he did. He rode a bike. when he was 5.
3) Did your parents travel to the sea last summer?  - No, they didn't. They didn't travel to the sea last summer. 
4) Did you see many animals in the Zoo? - Yes, I did. I saw a lot of animals in the Zoo.  5) Did your sister have tea for lunch yesterday? - Yes, she did. She had tea for lunch yesterday.