Воткнуть в предложения слова вместо пропусков: which, who, that, when, where,

Воткнуть в предложения слова заместо 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 people39;s culture. 3.So are fires ....... usually meant quot;dangerquot; or quot;victoryquot;. 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 Morses39;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 Marconi39;s, did not patent it. 9. In1983, the military project Arpanet became available to universities and research centres, ...... finally gave birth to the Internet.