例句來源：Advanced French Grammar (McGraw-Hill)
文法參考：Advanced French Grammar (Cambridge)抽選練習：Rewrite the sentences by replacing the underlined nouns and expressions with one or two pronouns.
- Il n'a eu aucune réponse.
(= He received no response.)
正確答案：Il n'en a eu aucune.
錯誤示範：Il n'a eu aucune réponse.
分析要點：lack of adverbial pronoun (en)
概念分析：other expressions of quantity
- identify what kind of expression is used in the sentence (expression with de/number/indefinite expression?): indefinite expression (aucune)
- recognise the pattern: expression of quantity + noun
aucune + réponse
- For the indefinite expression aucune, the adverbial noun en is used to replace the noun following the expression. The expression aucune itself has to remain at the end of the sentence. En is placed between the negation and auxiliary verb (avoir/être) as compound tense is used in this case.
*the negation ne becomes n' in front of a vowel or y.
Il n'en a eu aucune.
