句子开头一般要大写，这就要看你说这句话时，是不是一句完整的话了。例如：OFCOURSE，noproblem，前面有逗号，若是一句完整的话，则前面用大写
Sorry sir\maddam, this XXXX have sold out.You could order some another one on the menu,Thank you.
that's all
No dish
OVER
