问题补充:
单选题Wecongratulatedhim______hisgettingagoldmedal.Thatistosay:weofferedhimourcongratulations______hisgettingagoldmedal.A.at;onB.of;onC.on;forD.on;on
答案:
D解析congratulate sb.on/upon (doing) sth.意为“为某事祝贺某人”。congratulation通常用复数congratulations,其后多用介词on。