There is a fire alarm in the corridor.(对划线部分提问） 划在a fire alarm ____ ___ in the corridor?kuaiwhat happens 还是what is there in the corridor还是What has happened in the corridor
问题描述：
There is a fire alarm in the corridor.(对划线部分提问） 划在a fire alarm ____ ___ in the corridor?
kuai
what happens 还是
what is there in the corridor还是
What has happened in the corridor
答
what happens