Our innovative products and services for learners, authors and customers are based on world-class research and are Wesentlich, exciting and inspiring. 评估考生所使用词汇的范围以及所使用词汇的准确性和恰当性。 语法范围和准确性 然后，考官会要求考生开始陈述并在时间到时让考生停止陈述�