— How was your stay in Hong Kong?
—________. And it was a pity that I couldn't stay there longer.
A:Nothing could be worse.
B:It was just fantastic.
C:A terrible experience.
D:What a hard time I had!
如图为A、B、C、D四种微粒的结构示意图,请根据图示回答下列问题:
—She's sad.