A-A+

_____your order form. has been received it wi

2022-08-05 17:12:00 问答库阅读 170 次

问题详情

_____your order form. has been received, it will be processed and your books will be sent to you.
A．Unless
B．Despite
C．Like
D．Once

正确答案：D
解析：once的意思是“一旦……，就……”。