My sister wants to work in the factory which ___ still ___ .A .is_英语解答

My sister wants to work in the factory which ___ still ___ .
A .is ; building B.has ;been built C.is ;being built D.is ;to be built

人气：238 ℃　时间：2019-08-20 11:00:51

解答

C
我的姐姐想要在那个正在被建造的工厂工作
进行时、被动看到了吧
中间有个定语从句要解释么?其实翻译给你应该就理解了把?