Since the beginning of the 21st century, scientists have become more and more interested in the way______the human brain works.
A. why
B. which
C. in which
D. what
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Why do people cry?
A. To get rid of poisonous substances produced by strong feelings.
Because they have to work outside their homes.
C. Because they don't know how to prevent heart diseases.
D. For no reason at all.
A.DuringB.BeforeC.ForD.Within
A. During
Before
C. For
D. Within
She looked at us sadly with her eyes as large as______.
A. her grandmother
B. her grandmother's
C. that of her grand mother's
D. that of her grandmother
From the passage we learn that______.
A. the museum runs a school and has students of its own
B. students can receive different kinds of education here
C. part of school education has to be done in the museum
D. school programs are only run at weekends and on holidays