---Youshouldhavethankedherbeforeyouleft.---Imeant

问题详情：

--- You should have thanked her before you left. --- I meant _________, but when I was leaving I couldn’t find her anywhere.  A. to doB. toC. doing D. doing so

【回答】

B 

知识点：相似 相近词比较

题型：选择题