There is someone _________ the door.[ ]
A. in
B. on
C. to
D. at
答案：D
I’ve won a holiday for two to Florida.I ＿＿＿＿＿ my mum.
A．take
B．am taking
C．have taken
D．will have taken
直接参加产品生产工人的职工薪酬应计入( )科目。
A．生产成本
B．制造费用
C．管理费用
D．生产费用
