— They belong to ________.
A:she and me
B:her and me
C:she and I
D:her and mine
某物体运动的v﹣t图象如图所示,下列说法正确的是( )
图上1厘米代表实地距离10千米, 下列表达正确的是( )
They ________ carefully, but they didn't ________ anything.