B monkeys display a capacity for speech.
C monkey brains are smaller than human brains.
D monkey brains are asymmetric.12 According to the writer, left-handed people.
A will often develop a stammer.
B have undergone hardship for years.
C are untrustworthy.
D are good tennis players.
Answer Keys
Passage1
1-7.BDCBACE8. 15-20%9. 40%10. 6%11. D12. B