请问一道初中英语单选题Could you make sure____?A.when the bus would leave B.if the bus had left C.when the bus leaves D.where has the bus gone

请问一道初中英语单选题Could you make sure____?A.when the bus would leave B.if the bus had left C.when the bus leaves D.where has the bus gone
请问一道初中英语单选题
Could you make sure____?
A.when the bus would leave B.if the bus had left
C.when the bus leaves D.where has the bus gone

请问一道初中英语单选题Could you make sure____?A.when the bus would leave B.if the bus had left C.when the bus leaves D.where has the bus gone
B吧.
从句要用陈述句语序排除C.D
A的话是你能确定巴士什么时候会离开吗
B的话是你能确定巴士离开了吗?

选B吧，凭感觉