at the turning,at the crossing,at the street为什么介词都用at?

At the 27th turn left at the second turning否定句( )( )( )turning ( ) the( ) Please turn right at the f____ turning at the turning,at the crossing,at the street为什么介词都用at? Take the first turning on the right.写出同义句 _____ _____ at the first turning. 1.Turn left at the second turning._ the second turning _ _ _.(同义句) 求文档:Take left at the first turning哪块错了 Turn left at the first turning.的同义句 turn right at the first turning.同义句哦 Turn left at the third turning.改写句子,保持原意 Turn right at the second turning 用英语说 at the turn of 20th Turn right at the second turning中的at可以换成on么 Please take the first turning on the left.（改同义句） Pleaes __ __ at the firet turning. Turn right at the third turning.同义句是什么 * the third turning * * **号是需要填的单词, Turn left at the second crossing.(改为同意句)Take the second turning on the left. turn left at the second crossing的同义句 ( ) the second turning ( ) the left Take the second turning on the left at the third_______.(cross)求解释