you may start first.i will come to join you as soon as i __ my paper A.are finishing B.have finished B为什么~
问题描述：
you may start first.i will come to join you as soon as i __ my paper A.are finishing B.have finished B为什么~
答
完成是一个瞬间动词,不可能延续进行,应该是完成时,所以选B,意为,我一完成试卷就去找你.