问题
选择题
She was so lost in her own thought that she was not _____ the coming danger .
A．careful about
B．interested in
C．concerned with
D．aware of
答案
答案：D
短语辨析。Be careful about注意；be interested in对……感兴趣；be concerned with关心，关注；be aware of知道，意识到。句意：她陷入沉思中没有意识到即将到来的危险。所以选D。