第4题: [单项选择]7he growth of part-time and flexible working patterns, and of training and retraining schemes, ______ more women to take advantage of employment opportunities. A. have allowed B. allow C. allowing D. allows 参考答案:D 答案解析:根据句子结构,我们可以看出此处缺少的是谓语动词,又因为该谓语动词的主语为单数the growth,故只能选择[D]。例如:The usage of words,like that of phrases