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

问题描述:

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

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