When did you __(读完）this book?

When did you __(读完）this book?
When did you __(读完）this book?

When did you __(读完）this book?
finish reading

finish reading

finish (reading)

finish

finishreading或者是 finish referring to

B 首先前一个问句表示的是过去发生的事情。“你什么时候买的这本书？”要b When did you buy this book? I have had it for two weeks.