6.

答案：登入後查看
統計： A(121), B(27), C(11), D(1), E(0) #3822976

詳解 (共 1 筆)

#7331571
A. scaffolding has been erected against a building. 
B.A walkway is being paved with bricks. 
C. Workers are demolishing a wall. 
D. Several windows are being replaced.
2
0