He raised a suggestion at the meeting, well worth considering.
A. which I think is
B. which I think it is
C. I think is which
D. I think it is
网友回答
(答案→)A. which I think is
B. which I think it is
C. I think is which
D. I think it is
解析：考查定语从句。句中I think为插入语，先行词为suggestion，在定语从句中作主语，故选A。句意：他在会议上提出的建议，我认为很值得考虑。