Since the beginning of this century, （ ）has become even more im

Since the beginning of this century, （ ）has become even more important for the expansion of English vocabulary.
A、word-formation
B、borrowing
C、semantic change
D、​both B and C
【正确答案】：A
【题目解析】：本题可从现代英语词汇的历史发展入手。自本世纪初以来，构词对英语词汇的扩展显得尤为重要。