____ was in 1979____ I graduated from university. 
#16694
A
That; that
B
It; that
C
That; when
D
It; when
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_________ it takes many years to gain the skills of an expert.
#15083
A
It is well known to us that
B
As is known to us that
C
As we know that
D
That is well known to us
One should wash ___ hands before meals.
#16989
A
his
B
her
C
oneself
D
one’s