问题

It was not until 3 days later that the boycame back to life and explained to the police what_______ to him

A:which
B:that
C:what
D:when

正确答案是：

同类题型

When you come back to school, please show _____ your photos.

h having discussed it for long, they still haven’t reached an agreement ________ they should pour more money into the project

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According to my grandma, it’s a good idea to eat chicken soup when you have a cold.—________, scientists agree with her too.