1. 6 предложение — расшифруй, что такое BC?
2. В чём грамматическая разница между 7 и 10 предложением?

1. Anna explained that ice melts at a temperature of 0 degrees. 2. Philip said that he came to Russia in July. 3. Anna added that Philip loves to travel. 4. Suzy knew that Shakespeare was born in 1564, and told friends about it. 5. Robert asked. when Leo Tolstoy died. 6. The teacher told us that the Romans first came to the British Isles in the first century BC. 7. John said that he has been to Russia three times. 8. We all knew that Columbus discovered America in 1492. 9. Anna wanted to know where the Volga originates. 10. Boris said that he had never been in the desert.

1. BC (Before Christ) - да нашей эры

2. В 7 предложении has been - это Present Perfect, а в 10 had been - это Past Perfect.

1) the food hasn't been delivered yet.  2) king lear was written by shakespeare.  3) has the cases been put upstairs?   4) has he been offered a better job?   5) the meeting had to be postponed by them because of illness.  6) service is included into the bill7) all the flights were cancelled because of fog.  8) i had been accused of stealing the money.  9) a new ring-road is being built round the city.  10) i didn’t realize that our conversation was being recorded by someone.  11) the date of the meeting will have been changed.  12) my shoes had been cleaned and my suit had been brushed.  13) this room is used by us only on special occasions.  14) sarah has been offered a very good job.  15) the house was showed to the young people by the estate agent.  16) the gardener will be paid a lot of money.  17) an ancient temple has been discovered by archaeologists.  18) all these things will be put (by us) into boxes.  19) the best composition has been written by the youngest student in the class.  20) i am sent messages every day. messages are sent me by the children every day.