—Did you have fun _____________ on your last day off?
—No, I didn't. there were too many people and it was really crowded.
A:shop
B:shopping
C:to shop
D:shopped
Where did you ____ (stay) during the holiday?
在平面直角坐标系中,点P(﹣1,1)关于x轴的对称点在( )