填空题
A sentence is a structurally independent unit that usually comprises a number of （）to form a complete statement,（）or command.
words；question
单项选择题 The semantic components of the word “gentleman” can be expressed as（）.
单项选择题 （）deals with the way in which a language varies through geographical space.
单项选择题 The most recognizable differences between American English and British English are in（）and vocabulary.
