问题
选择题
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
答案
B。
第一空填what，用以引导宾语从句，用作介词of的宾语，其中的what在从句中用作动词have的宾语; 第二空填that，用以引导定语从句，修饰先行词something。
