19. Is this the very factory he visited last month?A. whichB. thatC. whereD. in which

问题补充：

19. Is this the very factory he visited last month?

A. which

B. that

C. where

D. in which

答案：

A. which

B. that

C. where

D. in which

解析：先行词被序数词、形容词的最高级及only, any, few,little, no, all, very,last等修饰时,关系代词常用that不用which。