The town’s drinking-water _____ with pri
题型:选择题
问题:
The town’s drinking-water _____ with prim chemicals at present.
A.contaminates
B.is contaminated
C.is being contaminated
D.has been contaminated
The town’s drinking-water _____ with prim chemicals at present.
A.contaminates
B.is contaminated
C.is being contaminated
D.has been contaminated