The author mentions the Balkans in the passage in order to explain why _________.
A.Indo-European languages were slow to spread in Old Europe
B.the inhabitants of Old Europe were not able to prevent Indo-European incursions
C.the use of the Old European script declined
D.the Old European culture survived for a time after the Indo-European incursions

If they took their language lesson seriously in advance, they would be able to communicate with the locals now.
A.took
B.seriously
C.would be
D.locals

Insurance rates are not the same for different people because they are not likely have the same risk.
A.the same for
B.because
C.have
D.same risk

_______(15)
A.healthy enough
B.enough health
C.also healthy
D.even health

The word "enhance" is closest in meaning to ________ .
A.encourage
B.resist
C.increase
D.reveal

It can be inferred from the passage that the European hare _______ .
A.is faster than most of its predators
B.is capable of two kinds of flight
C.is more likely to escape using straight flight
D.is preyed upon by gulls and falcons

The behaviour of black-beaded gulls is most comparable to that of _______ .
A.gazelles
B.European hares
C.peregrine falcons
D.frogs

The word "alarmed" is closest in meaning to _______ .
A.moving
B.selected
C.frightened
D.exhausted

The phrase "in particular" is closest in meaning to_______ .
A.especially
B.with difficulty
C.expertly
D.frequently

Why does the author mention "grasshopper" in the last line?
A.To contrast animals that "flash" with animals that "freeze".
B.As an example of an animal whose "flash" behaviour is a sound.
C.To compare the jumping behaviour of insects and reptiles.
D.As an example of a predator that moths escape by using "flash" behavior.