Ans 1: (Master Answer)
The correct answer is C.
Antonym is a word opposite in meaning to another word.
The antonym of the word 'Fixed' is 'Undecided'.
Established, Confirmed and Immobile are synonyms of the word 'Fixed'.
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Ans 7: (Master Answer)
The answer is C.
You ___could______ have a chocolate, if you finish your homework.
Ans 9:
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Ans 1: (Master Answer)
Present Perfect Tense indicates an action that has either occurred in the past or began in the past and continued to the present time. Example- Soni has lived here all her life.
Future Perfect Tense indicates an action will have been completed at some point in the future. Example- Ram will have completed his assignment by tommorow.
Past Perfect Tense indicates that an action was completed at some point in the past before something else happened. Example- I had walked two miles by lunchtime.
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Ans 2: (Master Answer)
The correct answer is D.
The word 'pioneered' as mentioned above means to initiate a new thing or development.
However, the term 'Discovery' means to recognize or find something for the first time that already exists and has not been recognised or found before.