【題目】If you are _______ (sure) about anything, just ask. Remember, no doubt leads to nothing.

【答案】unsure

【解析】

句意:如果你對(duì)什么事情不確定,就問(wèn)。要記得,沒(méi)有疑問(wèn)就沒(méi)有結(jié)果。

根據(jù)句意要問(wèn),可知是如果對(duì)事情不確定,故sure確定的要加前綴un表示不確定的。故答案填unsure。

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