单项选择题
A.What teachers say is always true. B.Success calls for attentiveness. C.Handwriting is easy to practice. D.New things are always better than old ones.
A.above B.along C.across D.under
A.buyers used to doubt the quality of goods from unknown sellers B.team buying is a good Chinese tradition C.team buying is not accepted by people D.buyers never purchase goods from unknown sellers