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
(21) that humpbacks communicate with each other by making beautiful
noises. A record was (22) in 1970 called Songs of the humpback whale.
which sold millions of copies. People were absolutely amazed to learn that some whales in
the deep oceans were so intelligent: in (23) centuries people had thought
that whales had simple brains, like fish.
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
21
A- explored
B-invented
C-discovered
D-informed
22
A -appeared
B-delivered
C-achieved
D-produced
23
A-previous
B-old
C-early
D-ancient
24
A -contained
B-included
C-consisted
D-involved
25
B-added
C -kept
A -sent
D-placed
26
B-difference
A-sort
C-kind
D-variety

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