---There must be a dozen pens in this house but I can never find one when I need one.--- K

发布时间：2020-08-16 10:38:33

---There must be a dozen pens in this house but I can never find one when I need one.
--- Keep looking.      is sure to turn up. 
 
 
 
 

A. one
B. it
C. that
D. that

网友回答

(答案→)A. one
B. it
C. that
D. that
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