问题
选择题
I ________ the living room．Look,it is clean．[ ]
A．clean
B．am cleaning
C．have cleaned
答案
答案：C
搜题请搜索小程序“爱下问搜题”
I ________ the living room．Look,it is clean．[ ]
A．clean
B．am cleaning
C．have cleaned
答案：C