The headmaster told us ____ football in the teaching building.

A．to not play

B．not to play

C．not playing

D．not played

嘴唇位于两眼平视时嘴角在两瞳孔内侧的垂直线上，上唇较下唇（）。

A.稍薄

B.稍厚

C.稍凹

D.稍凸