A:处理去掉雄蕊的番茄花蕾,育出无籽果实
B:处理青色的生香蕉,加速转变为黄香蕉
C:处理扦插的月季枝条,促使加快生根
D:处理切去胚芽鞘尖端燕麦幼苗,使其继续生长
改正下列各操作中的错误(在图的横线上用文字简要回答.)
I want to buy some postcards in the shop, ______ I don't have enough money.