Question

【题目】It won't be long before we (know) the result of the experiment.

Answer 1

【答案】know
【解析】句意：不久之后，我们就会知道实验的结果。it won't be long... 很快，不用多久。主句用将来，时间状语从句before we _______(know) the result of the experiment.用现在表示将来，故用know。