1. They (walk) in the park for two hours already.
2. Kate and Henry (walk) in the park for two hours, when it began to snow.
3. Polly and Frank (just/walk) in the city centre.
4. Dora (already/cook) dinner.
5. Emma (cook) dinner for some minutes already.
6. Kelly (cook) dinner for some minutes already when the light went out.
7. After Julia (eat) some cakes, she (order) an ice-cream and a glass of lemonade.
d) had been eating,
had ordered
8. When Mason (eat) some cakes, he (upset) his cup with coffee.
9. Frank (work) at his project for some hours when his wife phoned him.
10. David (work) at his article for some hours already.
11. Before his dad (finish) his picture, he (add) some bright colours to the flowers in the left corner.
12. Michael (build) his house in 1998.
13. The workers are very tired because they (build) this hospital for eight months without holidays.
14. After she (choose) a book, she (come up) to the librarian.
15. While Phil (choose) a poem, he (look through) all the old books.
a) was choosing,
was looking through
b) was choosing,
looked through
c) chose, looked through
d) was choosing,
had been looking through

1.A McDonald’s hamburger cost $0.15

2.The Twist was a popular dance.

3.Bandstand and I love Lucy were popular TV Programmes. (other answers possible)

The Beach Boys, Elvis and The Beatles were popular.

5.Surfing became popular.

6.Lava lamps, lasers and CDs were invented in the sixties. other answers possible)

7.Fashionable people wore bell bottom jeans, mini-skirts and beads.

8.Martin Luther King was a leader of the Civil Rights Movement.

9.America went to war with Vietnam.

10.The U.S.A. and Soviet Union were the main adversaries. These countries had many allies who were also involved.

11.The three presidents in the 1960's were John F. Kennedy, Lyndon B. Johnson , and Dwight D. Eisenhower.

12.Hippies expressed peace and love and often wore casual, loose clothing, headbands, beads and flowers.

Объяснение:Хорошего дня)

My name is Jennifer and I am a high school student. Our school has  A LOT OF

advanced studies and I have to work very hard there. So, my  PARENTS

are always making sure I do the things I must do to get the best marks. One thing that is very  IMPORTANT

for them is that I prepare for each day I go to school. It’s how I must revise for every test at least two days before it’s given and that I should get enough  SLEEP

the night before. So, no late night TV for me when that happens.

Объяснение:

Я проверил Не за что ребята :)