The problem with being a time waster is _____the online game playing often spills over into the periods of time that should be productive.
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what
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which
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that
D
whether
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It is obvious to the students ______ they should get well prepared for their future.
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as
B
which
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whether
D
that
Just a few minutes every day, _______ you could have shining floors and furniture with this new cleaner.
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but
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and
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or
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so
—Jack failed the driving test again.—The question is_____ we can help him avoid making the same mistake.
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how
B
why
C
what
D
whom
One advantage of playing the guitar is it can give you a great deal of pleasure.
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A
how
B
why
C
when
D
that