题目内容
----What have you been ____ these days?
----Preparing for my daughter’s wedding party.
A. up of B. on C. up to D. on to
C
练习册系列答案
相关题目
题目内容
----What have you been ____ these days?
----Preparing for my daughter’s wedding party.
A. up of B. on C. up to D. on to
C