问题
选择题
As time went on, people came to be ______ of the seriousness of China's population.
A．aware
B．abundant
C．adequate
D．alarmed
答案
答案：A
题目分析：考查形容词。A意识到；B大量的；足够的；D惊恐的。这里考查短语be aware of意识到。句意：随着时间的推移，人们开始意识到中国人口的严重性。故A正确。