A:to
B:on
C:do
-- Because there is too much t____ (交通) in the street.
句子改错
He came into the classroom and the students stopped to talk.
____
如图所示的杠杆,每个砝码重均为1牛顿,杠杆处于平衡状态,若在杠杆两边各减去一个砝码,则( )
“天生我材必有用,成功之路不尽同。”这说明人的生命独特性更多地表现在( )