.
---How long did Mary work here?
---For half a year, but she didn’t leave us much . We hardly remember what she is like.
A. expression
B. explanation
C. impression
D. conclusion
网友回答
A. expression
B. explanation
(答案→)C. impression
D. conclusion
解析：考查名词。A表达；B解释；C印象；D结论。句意：——玛丽在这里工作多长时间了？——半年了，但她每个月给我们留下太多的印象。我们几乎记不起她长什么样。