问题补充：
To our surprise, Tom has George as captain of our football team.
A. replaced
B. placed
C. covered
D. reduced
答案：
(答案→)A. replaced
B. placed
C. covered
D. reduced
解析：词义辨析。Replaced代替；placed放置；covered覆盖；reduced减少。句意：让我惊讶的是，Tom已经取代了George成为我们足球队的队长。所以选A。
