The flowers his friend gave him will die,unless watered everyday.在这里为什么要用watered呢
问题描述:
The flowers his friend gave him will die,unless watered everyday.在这里为什么要用watered呢
答
unless在条件状语从句当中,从句部分一般用一般现在时表将来时.另外从句的主语和谓语与主句相同时可省略.这里省略了they are (或者 the flowers are) 是一般现在时的被动语态.
他们是被浇水.