________you’vetriedyourself,you’llneverknowwhatanexciti...

问题详情：

________ you’ve tried yourself, you’ll never know what an exciting game bungee jumping is.

A. Though             B. Because             C. Unless        D. If

【回答】

C. 考查状语从句。根据句意可知。

知识点：连词

题型：选择题