Topic: verb (ক্রিয়া),

Best Answer Explained in Below-:

Semi-modals are verbs that share some characteristics of modal verbs but do not fit entirely within the modal category. Among the options provided, "need" and "dare" can function as semi-modals.

1. **Need**: While typically recognized as a main verb (e.g., "I need to go"), it can also act as a semi-modal in structures such as "You needn't worry" where it conveys necessity or lack thereof without requiring "to" in the following verb phrase.

2. **Dare**: Similar to "need," "dare" can operate as a semi-modal, particularly in negative and interrogative sentences. For instance, in "How dare you speak to me like that?" it functions without "to," signifying a challenge or provocation, aligning with the semi-modal usage.

In contrast, the other options—"can," "could," "will," "would," "must," and "should"—are fully-fledged modal verbs, which do not take on the same dual roles. They do not operate in the same way when it comes to forming questions or negatives without additional auxiliary verbs. Therefore, the correct answer to identifying semi-modals is indeed B: need, dare.