单项选择题
A.He gave half of it to his friend. B.He threw half of it away. C.He kept all the paper. D.He threw half of it away and kept the rest.
A.The world’s major languages. B.Cultural differences. C.Arabian desert life. D.Language and culture.
A.It’s determined before birth. B.Its left half specializes in music. C.Its left half specializes in language. D.It has a complex structure.