问题

a number of villagers in Shangcheng,Henan Province a kind of diseasecaused by the biting of a certain worm, very suffereddeath
A:the doorbellrang
B:the doorbellrings
C:we heard thedoorbell ring
D:we heard thedoorbell rings
B:the doorbellrings
C:we heard thedoorbell ring
D:we heard thedoorbell rings
正确答案是: