The word “This” in the 3rd paragraph refers to:
A.the brain
B.the action of the brain
C.response
D.hormones an neurotransmitters

Which of the following is impossible without the brain?
A.extracting information from the environment and acting in response to it
B.generating reflex responses as well as simple motor patterns such as swimming or walking
C.control behavior on the basis of complex sensory input which requires the information-integrating capabilities
D.coordinated body contractions and even locomotion

Don’t worry! He’ll do the job as ___________ as possible.
A.economical
B.economically
C.uneconomically
D.beautifully

The school boy __________down to tie his shoestring.
A.stopped
B.leaned
C.turned
D.went

He said he would contribute money, but later he __________ of it.
A.backed down
B.backed out
C.turned away
D.backed away

Poverty has reached _________ proportions in this country.
A.incubate
B.epidemic
C.infectious
D.transmit

What was Nobel's invention about?
A.It was about dynamite
B.It was about chemistry
C.It was about energy
D.It was about physics

Did he give all the money to his relatives on his death?
A.No, he did



Did he give all the money to his relatives on his death
B.No, he didn't
C.Yes, he did
D.Yes, he didn't

What is his money used for?
A.for researching many new invention
B.for the best working the following subjects: physics, chemistry
C.for the best working one of the following subjects: physics, chemistry, medicine, literature and peace
D.for creating a fund for poor children

There is a mistake in the sentence. Find the mistake and correct it.
Would you mind to tell us about your trip to Ha noi?
A.Would
B.to tell
C.about
D.to