Since the sales promotion, all the items well.
A. have been sold
B. were sold
C. had sold
D. have been selling
网友回答
A. have been sold
B. were sold
C. had sold
(答案→)D. have been selling
解析：句意：自从商品促销以来，所有的物品一直都卖的很好。since引导时间状语从句时，主句用现在完成时态。排除B，C。Sell表示“卖的好”要用sell well，即用主动形式表示被动含义。而“卖光”要用被动形式be sold out。故选D。