问题

Themilk_____terrible_____bad. [ ]
A: smells;mustgo
B: issmelt,musthavegone
C: smelling;musthavegone
D: smelt;mighthavegone
B: issmelt,musthavegone
C: smelling;musthavegone
D: smelt;mighthavegone
正确答案是: