Question

we ........ aim at noble goals? (desirability model ) show the meaning
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Answer 1

We ought to aim at noble goals.

• ​Modal verbs are words that are used as indicators.
• They are used with other verbs and indicate modalities like compulsion, desirability, suggestion and so on.
• The modal verb that is used to express desirability is 'ought to', which is the correct answer.
• An example of the modal verb used to express compulsion is 'must' and  to express possibility is 'may'.

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Answer 2

Answer:

i ....run a mile when I was young