问题补充:
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:
A. careful about
B. interested in
C. concerned with
(答案→)D. aware of
解析: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。