Our innovative products and services for learners, authors and customers are based on world-class research 雅思证书 and are Bedeutend, exciting and inspiring.这种题型要求考生从文中选择单词来填入每个句子的空白处。考生必须将所选单词写在答题卡上。这种题型给出多个陈述句并提问考生：“下�