Do you know Tom,the manager of that pany?
-Of course,I know him,By next month,I him for 10 years.
A. know
B. knew
C. will know
D. will have known
网友回答
A. know
B. knew
C. will know
D. will have known
解析：句意：--你认得那个公司的经理汤姆吗？--当然，到下个月位置我就认得他10年了。时间是by next month，by一般和完成式连用，和将来时间搭配，就用将来完成式，所以选D。