Question

We________ respect our national flag. ( Fill in with a proper modal verb)​

Answer 1

The correct modal verb is 'must' thus the sentence is 'We must respect our national flag.'

• Modal verbs are used to describe hypothetical conditions like guidance, capabilities, or requests. They are used to modify the meaning of a primary verb. They cannot be used on their own because they are auxiliary verbs.
• The modal verb 'must' is to refer to duties and refer to obligations that come from somewhere else. In this sentence 'must' is used as it is duty of everyone to respect their national flag.
• Must is also used when something is necessary to occur every time as it indicates certainty.
• Although native speakers prefer the more flexible phrase "have to," it can be be used to convey need or strong recommendation.

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