Explanation:
He is busy with his studies,he has to complete his revision before the exam begins
Can you post the story if you have it
Answer:
The correct answer is option D) Scientists have spent years trying to determine how tsunamis can be predicted with greater accuracy.
Explanation:
A formal sentence is devoid of any slang, informal sentence structure, abbreviations or mixed language words.
In the above sentence, proper English vocabulary is used in the sentence. There is no slang words in it. Words are not written in their short forms and neither is any street language used. The sentence is structured in a very professional way and none of the words are misspelled.
The answer is option B: abstract, singular, common.
The noun agreement is abstract because it conveys an idea, condition or characteristic rather than a concret object. It is also singular because it refers to one thing and in the example sentence it does not take the plural form. Finally, it is common because it does not apply to a specific person, place or thing, as in the case of proper nouns.