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star14:17:29thepresidentwasamongthefirsttocongratulatethescientisthisnewdiscoveryAatBinCaboutDout选哪个答案呢这个试题的答案是out,请问具体的解释

题目详情
star 14:17:29
the president was among the first to congratulate the scientist____his new discovery
A at B in C about D out
选哪个答案呢
这个试题的答案是out,请问具体的解释
▼优质解答
答案和解析
无论如何都不可能用out,应该是你的书本有误.
congratulate的用法:
1.congratulate sb.for sth.为某事像某人祝贺
He is to be congratulated for his success.
他将会由于取得的成就而受到祝贺.
2.congratulate sb.on...就…向某人表示祝贺
We congratulated him on having passed the exam.
我们祝贺他通过了考试.
3.congratulate that+从句
I should congratulate you that you resisted the temptation.
我应向你祝贺,你抗住了这种引诱.
应填for/on