--- Look! What’s on the ground?
--- Oh, it’s my sweater. Please _____ .
   A. pick up it        B. put it up      C. pick it out   

  
答案：A
解析：pick up：捡起，拾起；pick out：挑选。当句中有代词it时，捡起某物固定搭配为pick it up

--- Look! What’s on the ground?
--- Oh, it’s my sweater. Please _____ .
   A. pick up it        B. put it up      C. pick it out   

  
答案：A
解析：pick up：捡起，拾起；pick out：挑选。当句中有代词it时，捡起某物固定搭配为pick it up