试题题干
Fill in each of the following blanks with a word or an expression.
Appropriateness or 
refers to the conditions of presupposition for a sentence.
参考答案
试题解析
适当性或恰当性是指句子预设的条件。
Fill in each of the following blanks with a word or an expression.
Appropriateness or refers to the conditions of presupposition for a sentence.
适当性或恰当性是指句子预设的条件。