19．Wecongratulated themon  （祝賀） getting married．

分析 我們祝賀他們結(jié)婚．

解答 答案congratulated； on． 考查固定短語．根據(jù)句意：我們祝賀他們結(jié)婚．congratulate sb．on sth．是英語的固定短語"就某事祝賀某人"，根據(jù)句意用過去時所以答案填congratulated on．

點評 英語中的固定短語，既不能添詞，也不能少詞，是固定的，要求同學(xué)們在平時記憶準(zhǔn)確，然后根據(jù)句意找出記憶中的固定搭配，做出正確的答案．

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