CareersAdviceserviceisonlyavailabletopeopleonday-timecourses．（）A.tostudyB.studyC.studiedD.studying

问题：CareersAdviceserviceisonlyavailabletopeopleonday-timecourses．（）A.tostudyB.studyC.studiedD.studying

答案：↓↓↓

贾海洋的回答：

网友采纳　　答案：D　　句中study修饰people作后置定语，要用非谓语动词；people和study构成主谓关系，且句意表达的是进行的动作，要用表示主动的现在分词来构成．故选D．