Youcancongratulateyourself
问题详情：
You can congratulate yourself _____ having done an excellent job.
A. at B. on C. for D. in
【回答】
B
知识点：介词
题型：选择题
问题详情：
You can congratulate yourself _____ having done an excellent job.
A. at B. on C. for D. in
【回答】
B
知识点：介词
题型：选择题
