求助(现在完成时):"Has the bus left ______?”“Yes,it has ______ left.” 急用,

问题描述:

求助(现在完成时):"Has the bus left ______?”“Yes,it has ______ left.” 急用,

:"Has the bus left 【yet ”“Yes,it has 【already 】left.”
不明白的再问,多谢!