第38题:[不定项选择题]When does language acquisition begin according to the research? A.It begins with the birth of a baby. B.It begins before the birth of a baby. C.It begins when a baby starts imitating adults’ speech. D.It begins with a baby's cry melodies typical of its mother tongue. 参考答案:B 细节题。根据倒数第二段中的“That acquisition，it is now clear, beginsmonths before birth，probably in the third trimester.”可知，婴儿在出生之前就开始了语言习得。故本题选B。
