Вставить в предложения слова вместо пропусков: which, who, that, when, where, whose. 1.now it is a general term for systems or technologies are used in sending and receiving messages over a distance electronically. 2.there was a time cave drawings were painted on the walls of caves and canyons to tell the story of people's culture. 3.so are
fires usually meant "danger" or "victory". 4.ancient egypt was the first country birds - domesticated pigeons were used for sending messages. 5. 1843 was the year in samuel morse proposed a way to give every letter and number a special code. 6. it was morses's symbol code we can still find used today. 7. it was bell managed to register it first. 8. alexander popov from russia
invention of the radio came before marconi's, did not patent it. 9. in1983, the military project arpanet became available to universities and research centres, finally gave birth to the internet.

1)which

2)when

3)that

4)where

5)which

6)which

7)who

8)whose

9)which

1. Now it is a general term for systems or technologies which are used in sending and receiving messages over a distance electronically.

2. There was a time when cave drawings were painted on the walls of caves and canyons to tell the story of people's culture.

3. So are fires that usually meant "danger" or "victory".

4. Ancient Egypt was the first country where birds - domesticated pigeons were used for sending messages.

5. 1843 was the year in which Samuel Morse proposed a way to give every letter and number a special code.

6. It was Morses's symbol code which we can still find used today.

7. It was Bell who managed to register it first.

8. Alexander Popov from Russia whose invention of the radio came before Marconi's, did not patent it.

9. In1983, the military project Arpanet became available to universities and research centres, which finally gave birth to the Internet.