A. The area is under construction.
這片地區正在開發。
B. The buildings look exactly the same.
這些建筑看起來一模一樣。
C. The fence is being put around the site.
正在這片選址周圍搭建籬笆。
D. All the people are wearing safety hats.
D.所有人都帶了安全帽。