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---Have you heard about Volunteer? ---Sure, A volunteer is someone _________ is willing to offer help without being paid..
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A
who
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what
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where
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which
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The first thing           we should do is to tell him the news.
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A
who
B
which
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that
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whom
A graduation ceremony is a custom           takes place           students graduate from a school.
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which; when
B
that; who
C
which; whose
D
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In the street I met the professor______ gave us a talk last week.
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what
B
which
C
who
D
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Friends are those_____ make you smile, always open their hearts to you and encourage you to succeed.
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which
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who
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I hate those ________ don’t help others when they are in trouble.
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A
who
B
which
C
what
D
where