问题详情

Bob：Rathappened？
Jenny：Well，Iwaswalkingtoschool，andIsuddenlyfeltverysick．
Bob：Yes…
Jenny：So，Iwentbacktomyapartmentandstayedinbedallday．
Bob：Oh，__________．
A.it，sterrible
B.it，sbad
C.I"msorrytohearthat
D.it’Ssad
请帮忙给出正确答案和分析，谢谢！