题目

To save class time, our teacher has ________ students do half of the exercise in class and complete the other half for homework.   A. us   B. we   C. our    D. ours   答案：A   解析: us是宾语，students为us的同谓语，又如：tell us all  已知是R上的奇函数，其图像关于直线对称，且在区间上是单调函数，求Φ和的值。