Which of the following sentences has a 'modal verb'?
- AHe is flying a kite.
- BHis father knows me well
- CRam is an intelligent boy
- DHer mother ought to know what she is doing in Mumbai
Solution & Step-by-step Explanation
Modal auxiliary verbs express modality (necessity, obligation, permission, or ability). The semi-modal verb 'ought to' in option D expresses a strong moral obligation or duty, making it the correct option.