The Nuclear Security Summit is an initiative of Mr. Obama, considers nuclear terrorism to be one of the greatest threats to international security.
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推荐题目
Willpower is a kind of quality, ______ is ______ it takes to do anything well.
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what; which
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what; what
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which; which
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which; what
livemocha. com is a free site _______ visitors can not just learn languages but also chat online.
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that
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where
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which
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what
“Love of life”,______ is one of Jack London’s masterpieces, has been translated into many languages.
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it
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that
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which
Some poems tell a story or describe something in a way ______ will give the reader a strong impression.
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that
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in which
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X
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how
--Do you know the man _______ I shook hands just now?--Yes, I know him. He is a famous actor.
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whom
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who
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with whom
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with who