Fill in the Blanks

'Being known to somebody' means 'to be acquaint with'. Hence, we must use the word "known".

Knows is the singular verb. Hence, it cannot be used with the subject and we must use the word knew.

Case of present perfect tense. 'Has/have' take 'third form of the verb. Therefore, 'done'. 

A person is always 'known' to somebody. 

This is a passive sentence. And in such cases, auxilary 'was' is followed by 'third form of the verb'.

In such cases, 'third form of the verb' is used. Third form of hang is 'hanged'.

In such cases, we always use 'third form of the verb' with auxilary. Therefore, 'was chosen'.

This is a passive sentence. In such cases, auxilary 'was' is followed by 'third form of the verb'.

This is a passive sentence. In such cases, 'was' is followed by 'third form of the verb'.

As the ring had already been given, so 'gave' is the right usage.

'He' takes 'singular verb'. As the sentence is not the case of continuity, so option 4 also is eliminated. 

In the dialogue context, Rani is expressing her opinion/prediction about what Simi will do. 'Will' is used for predictions and decisions about the future. The sentence structure 'I think she will...' shows a first-person prediction. Would implies hypothetical, must expresses obligation, and may suggests possibility without certainty.

The sentence 'She brings credit to her family' states a general fact or truth about Simi's achievement. Present simple is used for general truths and facts. 'Has brought' is present perfect but would suggest connection to now, 'brought' is past simple, and 'will' is future - but the context calls for stating what she does generally.

The question asks about Simi's current plans. Present continuous ('is Simi planning') is used for ongoing arrangements and plans in the present. The context 'Now that she has stood first' indicates we're discussing her current situation. 'Will Simi plan' would be future, 'have Simi planned' is present perfect for completed action, and 'had Simi planned' is past perfect.

The sentence discusses general facts about the solar system. 'There are several other bodies' uses present simple to state a fact that is always true. 'Were' is past, 'have been' is present perfect, and 'had been' is past perfect - none fit the context of describing a permanent astronomical fact.