_______ he is always studying hard is well known ____ us all.
#66004
A
How, to
B
What, to
C
That, to
D
Whether, by
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 "Will you be able to finish the job this week?"    " ___ ."
#83323
A
I can't say it
B
I don't know that
C
I'm not sure this
D
I don't expect so