—It's seven o'clock. It's time to go _______.
—OK, let's go.
A:the school
B:to school
C:my school
人体内完成受精的场所是( )
如图,在光滑的水平面上叠放着甲、乙两个木块,甲木块用一根细绳拴在左边固定的竖直板上,现在用力把木块乙从右端匀速地抽出来,所用的力F=15N,则甲、乙两木块所受的摩擦力是( )
You can____ ____this street.
请根据提示和所学知识写出相对应的人物或名词。