_____your order form has been received, it will be processed and your books will

游客2025-06-16 2

问题 _____your order form has been received, it will be processed and your books will be sent to you.

选项 A、Unless
B、Despite
C、Like
D、Once

答案 D

解析 once的意思是“一旦……，就……”。

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