题目内容
–Do the Smiths live next to you? --No, but they____.
A. used to B. used to do it
C. used to be D. used
练习册系列答案
相关题目
题目内容
–Do the Smiths live next to you? --No, but they____.
A. used to B. used to do it
C. used to be D. used