找出下列单词与众不同的一项
1. A. Day       B. Sunday      C. Train       D. Paid
2. A. Usually    B. Brush       C.Study       D But
3. A. Tea       B. Healthy     C.Bread       D. Bed
4. A.Apple      B Past         C Have        D. At
5. A.Picnic     B Driver        C Twice       D. Like