If you are free to walk through out city, please ________ us.A drop in B drop in at C. drop in on
下列英语缩写与中文意思相符的一项是 ________ .
This is _____ bag. Those are my __________.
-----________ the girl in a purple hat? -----She is my sister Anna.
—____, are you Mr. Wang? —Yes, I am.
-----Is she Helen? -----__________. She is Gina.