There is no doubt _______ nearsightedness is a serious problem among the youth of our country.
#67052
A
/
B
which
C
whether
D
that
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For more information, please send an e-mail, ____ you can also include your advice to us.
#66841
A
when
B
where
C
which
D
that
When they met ten years later, they talked happily about the people and the things ________ they remembered on the school football team.
#69071
A
who
B
which
C
what
D
that
________ is no possibility ________ she can finish the task in two hours.
#68571
A
There; that
B
It; that
C
There; whether
D
It; whether