Safety in school has been of great concern because of frequent reports about accidents _______ students got injured or killed while in school .
#93689
A
that
B
when
C
in which
D
for which
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The man didn’t know _________ the thief broke into the house and stole all his valuable things  
#93875
A
it was when that
B
when it was that
C
that it was when
D
was it when that
--Steven has got the first prize in the math contest. --____ he looks so happy today.
#92575
A
There’s no doubt that
B
It’s no wonder that
C
Thisis no doubt whether
D
That is no wonder whether