——Are they going to Kunming by plane ——YES.it( )(take)them three hours
问题描述：
——Are they going to Kunming by plane ——YES.it( )(take)them three hours
答
他们将要乘坐飞机去昆明吗?是的,（他们）将要三个小时的行程.这里的it前置是花时间的一种用法：可以是it takes somebody sometime to do something.当然还可以用it cost 3 hours to get there.