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
| 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。 |
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