摘要: You can only be sure of you have at present; you cannot be sure of something you might get in the future. A. that; what B. what; / C. which; that D. /; that [解析] B of后为宾语从句.从句中缺少宾语.所以用what引导,something后接定语从句.可以省略作宾语的关系词that.

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