_________ I saw was two men crossing the street.
A. What B. Whom C. Who D. That
We were not surprised at ____, for he had worked so hard.
A. what has he achieved B. that what he had achieved C. what he had achieved D. that he had achieved
The author of the passage advises us _________
A. to use words carefully and accurately B. not to use silly and rude words C. to become a slave of words D. to use emotional words
我国现行建筑安装工程费用构成中，材料二次搬运费应计入（）。
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