9. Przeczytaj tekst. Spośród wyrazów podanych i w ramce wybierz te, które poprawnie uzupełniają luki 1-3. Wpisz odpowiednią literę (A-F) obok numeru każdej luki
. Uwaga! Trzy wyrazy zostały podane dodatkowo i nie pasują do żadnej luki

A. wake
B. sides
C. feeling
D. sense
E. ends
F. awake

A Very Clever Creature!
Bottle-nosed dolphins are
a very clever species of
animal. They communicate
with a variety of sounds
and have a highly developed
1)... of hearing that makes
use of their teeth for antennae.
They are very intelligent and have a
large brain. In fact, compared to humans, they have
double the brain power. Dolphins have to stay
2) ... all the time in order to breathe and carry on
basic survival behaviours. During the night, they
switch off the left and right 3) ... of their brain in
turn. They never sleep!​