Itisnotdecided________theconferencewillbeheld.
C
A 什么 B 哪一个 C 什么时候 D (无词义)
Youngerchildrenarecurious________howthingswork,andmanyofthemwanttotakeaparteverythingwithintheirreach.
There is a deadlock(僵局) in the discussion when neither side gives ________ to the other.