A)Dr.Stephens was performing an experiment while his students were watching him. B) Dr. Stephens had performed a lot of experiments before he made an important discovery. C)Two weeks ago Dr. Stephens performed an experiment with the help of some university students.
fall
A) The baby fell asleep, as soon as we put her bad. B) As the baby was falling asleep, she was making some funny sounds. C) The baby had fallen asleep by the time he got home and he didn't want to wake her up.
read
A) Laura had read the report many times before she gave it to her boss. B) While Laura was reading the report, her computer started making strange noises and stopped working. C) Laura read the report, switched off her computer and went home.
1. This is A pen. That is A pencil. 2. This is A book. It is my _ book. 3.Is this your _ pencil? -No, it isn't my _ pencil, it is my sister's _ pencil. 4. I have A sister. My _ sister is AN engineer . My sister's _ husband is A doctor. They have got two _ children. 5. This is A girl. This _ girl is their _ daughter. Their daughter's _ name is Vera. 6. That is A boy. That _ boy is her _ brother. Her brother's _ name is Nick. 7. This is our _flat. 8. We have got A car. Our _ car is not very expensive but reliable. 9. I have no _ pet. 10. My granny has got A headache. She has no _ idea what to do. 11. I have A friend. 12. It's A cat. Its _tail is long and bushy. It's Mike's _ cat.
я не поняла в чем во