题目内容
His classmates offered him their congratulations ______ his successful performance.
| A.at | B.on | C.for | D.of |
B
试题分析:句意:他的同学对他的成功表演表示祝贺。这里使用短语congratulations on sth“祝贺某事”,所以选B。
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| A.at | B.on | C.for | D.of |