Once , this book will be popular. [ ] A.is printingB.is printed C.being printedD
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![Once , this book will be popular. [ ] A.is printingB.is printed C.being printedD](/pic/43_929154.jpg)
Once ________, this book will be popular.
[]
A.is printingB.is printedC.being printedD.printed试题答案
答案:D
解析:这是一个含有时间状语从句的主从复合句,once引导的从句是一个省略句,原句为it is printed,省略了it is。 |