You can keep the book until you ___?A having finished readingB finish to readC will finish reading D have finished to read

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You can keep the book until you ___?A having finished readingB finish to readC will finish reading D have finished to read

You can keep the book until you ___?A having finished readingB finish to readC will finish reading D have finished to read
You can keep the book until you ___?
A having finished reading
B finish to read
C will finish reading
D have finished to read

You can keep the book until you ___?A having finished readingB finish to readC will finish reading D have finished to read
You can keep the book until you _ finish to read __?
keep特殊用法!

选B吧

B

选A
until 引导的相当于一个时间状语从句,只有过用了动名词的形式。用完成时表示这个动作在谓语之前发生的,也可以释为对后面的动作造成的影响!!!!!!