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

 

B

【解析】B　[第一個(gè)空填what，引導(dǎo)賓語從句；第二個(gè)空的定語從句引導(dǎo)詞作賓語，可省略。]

 

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