The building looks old .We need to____the walls.

The building looks old .We need to____the walls. 英文：We need to survey the height of the building . The old man looks We need help at the old people's home We need help at the old people's home. We need help at the old people is home翻译 we need help at the old people's ho The old man looks pretty ( ) we used to study in the old building which was broken down . 在We used to live in the old building.中 used to 可以换成什么短语 We used to study in the old building ( ) was broken down las Are you for pulling down the old walls