---Hey, look at my shoes, look what you’ve done.
---Oh, I’m sorry I’ve got your shoes dirty.But I ______ .
A.haven’t noticed B.didn’t notice
C.wasn’t noticing D.hadn’t noticed
---Hey, look at my shoes, look what you’ve done.
---Oh, I’m sorry I’ve got your shoes dirty.But I ______ .
A.haven’t noticed B.didn’t notice
C.wasn’t noticing D.hadn’t noticed
C