问题

It was not until 3 days later that the boycame back to life and explained to the police what_______ to him.
A:was happening
B:was to happen
C:had happened
D:has happened
B:was to happen
C:had happened
D:has happened
正确答案是:
同类题型
The plan was so shallow and impractical that noserious _________was ever made to realize it
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The mother asked her son_________.
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One reason why he succeeds is ______he is good at thinking in different ways.