A:氢氧化钾固体露置在空气中易变质
B:氢氧化钾溶液能使石蕊溶液变红
C:氢氧化钾溶液与氧化铜反应生成蓝色沉淀
D:2mL氢氧化钾溶液与1mL硫酸溶液恰好完全反应
—I don't know if it ____ tomorrow.
—Well, if it ____, I won't go out with you.