Questions 21-26 For each question, choose the correct answer. Whale songs Did you know that a kind of whale, called a humpback whale, sings? In the 1960s it was . that humpbacks communicate with each other by making beautiful ....... in 1970 called Songs of the humpback whale, (21)...... noises. A record was (22)...... which sold millions of copies. People were absolutely amazed to learn that some whales in the deep oceans were so intelligent: in (23).. that whales had simple brains, like fish. centuries people had thought The songs of the whales were so popular that they were (24) .... in recordings of sounds from our planet which were (25) .... into space in 1977. The recordings were chosen to show the wide (26) ........ of life on our planet. People hoped that, in the future, they might be found by intelligent creatures far out in space. F W​