分类：教育/科学-外语学习
问题：CarolsaidtheworkwouldbedonebyOct? 
arol said the work would be done by October.＿＿personally I doubt very much. A. it  B. that  C. when   D. which  【答案】 【解析】
回答：Carol said the work would be done by October，＿＿personally I doubt very much. 

A. it 
B. that 
C. when 
D. which 

【答案】 ：D
【解析】 ：which指代前半句