B3U2 Grammar 情态动词 II (Modal Verbs) 一．情态动词 ought to 的用法 Eg: 1.Ask John. He ought to know. 问问约翰吧，他该知道。 2. To keep fit，we ought to learn more about our body. 3. He ought not to do it. / He oughtn’t to do it.他不应该做这件事。 4. Ought we to d...

时间:2025-06-22 16:29栏目:中学教育