Write general questions for these sentences using the past perfect continuous. Change pronouns we, I, our in questions. Don’t forget about question marks and

Example 0. Sam had been having lunch.

Answer 0. Had Sam been having lunch?

1. My mother had been making sandwiches.

2. She had been having a cup of coffee.

3. The birds had been drinking water.

For more than s century Britain has been developing policies to conserve  the natural and built heritage and protect the environment against pollution from industry and other sources. Britain helps international organizations on environmental protection. The Government controls over waste air pollution litter noise and water pollution.The National Rivers Authority is responsible for the control of water pollution in England and Wales.The south-west coast of Wales was seriously affected by one of Britains largest oli pollution incidents in 1996. oli leaked into the sea. However a major clean-up operation was done.

1. We have known each other for twenty years.

2. My friends have been learning English for four years.

3. Have you learnt these verbs?

4. We have never been to Japan, but we have always wanted to go there.

5. He has been riding his bike the whole evening!

6. Anna hasn't been working hard recently.

7. She hasn't been writing poetry for 3 years already, but she has written  lots of poems in her life.

8. - Why are you so dirty? - I have been playing with Rex in the garden.

9. How long have you been waiting for Mary?