问题
选择题
----What have you been ____ these days?
----Preparing for my daughter’s wedding party.
A．up of
B．on
C．up to
D．on to
答案
答案：C
搜题请搜索小程序“爱下问搜题”
----What have you been ____ these days?
----Preparing for my daughter’s wedding party.
A．up of
B．on
C．up to
D．on to
答案：C