Sava is a very good student. She always abides (a)by the rules and regulation of school. She takes care (b)of her health too. She knows that morning walk is very beneficial (c)for health. She never complains (d)to/ about anyone. If she makes any mistake she apologies (e)for it. She tries her best to abstain herself (f)from doing wrong. She works hard and is confident (g)of her good result in the upcoming examination. She finally believes (h)in God.

Explanation:

In the given 'fill in the blanks' question, the best way to fill the blanks and make correct sentences will be to use prepositions.

Now, prepositions are words that tell us the position, the relation of the words to each other. In short, they indicate the relation of the words in the sentence.

Therefore, the given passage with the correct prepositions will be-

Sava is a very good student. She always abides by the rules and regulation of school. She takes care of her health too. She knows that morning walk is very beneficial for health. She never complains to/ about anyone. If she makes any mistake she apologies for it. She tries her best to abstain herself from doing wrong. She works hard and is confident of her good result in the upcoming examination. She finally believes in God.