Two and four _____six. 
#44006
A
is
B
am
C
are
D
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Every means     , but none proved      .
#85757
A
have tried; a success
B
have been tried; successful
C
has tried; to be successful
D
has been tried; successful
A library with seven thousand books _____ to the area as a gift.
#86223
A
is offered
B
have offered
C
are offered
D
has offered