选出下列划线词的反义词：

Please close your books.

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Please ______ and come to the blackboard, Jack.

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Let me ______ a look at the skirt.

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Who can ______ me carry this heavy basket?

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A: Can I have a cup of tea, please?

B: Yes, ______.

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国际奥林匹克委员会已决定了第29届奥运会于2008年在我国北京举办。这个组织的英文简写是________。

下列缩写词表示国际求救信号的是________。

I think the homework will________ us about two hours.

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