是on the crossing还是at the crossing

是on the crossing还是at the crossing turn right at the crossing还是turn right on the crossing at the first crossing at the.crossing怎么翻译 Yesterday l see a boy_____(cross)the road when the red light is on.是填cross还是crossing turn left at the first crossing 在哪条路什么时候用at什么时候用On Turn left at the second crossing.(改为同意句)Take the second turning on the left. Turn right at the first crossing.(同义句） _____ the first _____ on the _____. Turn right at the first crossing(同义句)( )the first ( )on the right Turn right at the third crossing.(同义转换) .the third .on the right Take the first turning on the left.(同义句） ------ ------- at the first crossing. turn left on the second crossing是“在第二个十字路口向左转”还是“向左转第二个十字路口”? turn right at the first crossing and the restaurant is on you left 翻译 Turn right at the second crossing.(改为同意句）( )the second turning on ( )( ). Turn right at the second crossing.(改为同义句） ( )the second turning on ( )( ).ps：( )里只填一词 turn right （）the third crossing.A.at B.inturn right （）the third crossing.A.at B.in C.on Go on walking and turn left at the third crossing同意句:____ on and____ third ____ on the ______. The policeman orded me to （ ） the road at the zebra crossing,括号处改填through还是across?我觉得该填across,可是答案是through.