第20题:[单选题]The Adult Vocational College is an opportunity to gain the right qualifications for various careers for it offers an ___range of subjects and courses. A.additional B.excessive C.adequate D.extensive 参考答案:D additional“额外的,附加的”;excessive“过多的,过分的”;adequate“足够的’适当的”;extensive“广泛的,广阔的”。四个选项中只有extensive 可以修饰range,表示广阔的范围。