To save class time, our teacher has ________ students do half of the exercise in class and complete the other half for our homework.
A.usB.weC.ourD.ours在线课程A
句意：为了节省时间，我们老师让我们（学生）在课堂上做完一半练习，另外一半作为家庭作业。根据句意可知题干中的has为使役动词，后面需要代词宾格与students一起作宾语，us与students为同位关系。