The higher we go up the mounta

higher up the ladder The higher up ,the greater the fall. The higher we go above the coach,the__(薄的） the air is we ____ the national flag go up We go up and down the building___elevator It's hard to climb up the mountains.同义句()climb up the mounta The higher up the mountain you climb,the colder a We go up north.We play in the snow. we go up and down the apartment building in the Early ( ) the morning of May 1,we started off for the mounta a higher和the higher go up to the