情态动词（Ⅱ） 翻译下面的句子，并注意句中情态动词的含义。 1. By now his restaurant ought to be full of people. 到了这个时候，他的餐馆本该宾客盈门的。 2. He ought to have kept his promise. 他原本应该遵守自己的诺言的。