Lucy,what do you know (a ) your pen pal.( )里填“about”还是“all”,还是

题目

Lucy,what do you know (a ) your pen pal.( )里填“about”还是“all”,还是
其他的初一上册三单元的单词

答案

Lucy,what do you know a____ your pen pal?
应填：about
译文：露丝,你都了解你的笔友哪些情况呢?
关键词：
know about
[英][nəʊ əˈbaut]
[美][noʊ əˈbaʊt]
知道,了解