—Did you know just now?
—Their plane didn’t take off on time because of the thick fog.
- A.what did they happen
- B.what happened to them
- C.what they happened
- D.what they have happened
答案
正确答案:B
知识点:宾语从句

句意为“——你知道刚才他们遇着什么事了吗?——由于大雾他们的飞机没有按时起飞”。上句用到了“sth happen to sb/sth (事情发生在……身上,临到……头上)”,所以“他们遇着什么事情了”为what happened to them。本句中what happened to them作的是宾语部分,要用陈述语序,而what happened to them本身就是陈述语序,所以答案选B。

略
