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Please correct the following sentences.

This is the best book in the library.

I have to convert this sentence into comparative degree.

Shall I write it like-----

1. This book is better than any other book in the library.
2. This is better than any other book in the library.

My doubt is, Shall I write only "This" or "This book".

Make my doubts clear.
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Every one should read their book.

Every one should read his or her book.

The First doubt ,shall I write "Every one" or "Everyone",because some where it is written like "Every one" and some where "Everyone".

The Second doubt about "their" and "his or her".
It is written that we can use "their" in Informal but "he or she" in Formal English.

My question is, shall I always use Formal, as I am a student.
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some boy ot the other has stolen my book.

This sentence is written in a English text book.

some time it is confusing. As "some boy" is indenfinite but same "ther other" definite. What are the correct rule for this.
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I don't like that ice-cream. I don't like this one too.

I think this sentence is not correct .This should be like-----

1. I don't like that ice-cream. I don't like this one.
2. I don't like that ice-cream. I don't like this one either.

Whic one is correct according to you?
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If I write a sentence like

1 .Ram is cleverer boy than any other boy in the class.
2. Ram is cleverer than any other boy in the class.

Which one is correct?

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John is the best of all other boys in the class.

is this right. Shall I use "other". Please explain it in detail.

Thanks .
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I would write:

This book is better than any other book in the library.
OR
This book is better than any other in the library.

"everyone" is written without a space.

In your place (as a student), I would write:

Everyone should read his book.
OR
Everyone should read his or her book.

I believe the following is the correct form:
Some boy or other has stolen my book.
I agree with you that the sentence in the English textbook does not seem correct.
Comments  
Students: We have free audio pronunciation exercises.
More additions:
- In your place (as a student), I would write:

Everyone should read his book.
OR
Everyone should read his or her book.
OR
Everyone should read their book. ("their" here is used as "his/her", it does not mean "of them")

My personal idea ONLY (no grammarian agrees with me!!!!): Everyone should read its book.
Reason:
- avoid the misleading thing that everyone appears to be a plural noun.
- avoid the confusion about the use of verb (eg Everyone here is good. They __ (like or likes?) people.)
- avoid the clumsiness in "his/her"
"Everyone should read their book." is also correct, but I would not put it under a heading suggesting the most conservative usage. If, as a student, I were faced with a test question where the choice between "his" and "their" was posed as the problem, I would assume that the test makers were testing for knowledge of the most conservative rules, and I would answer "his". And then I would leave the testing venue and use "their" in my own everyday speech! Emotion: smile

I hope that clarifies the answer I gave earlier!
Dear CalifJim,
Yes you are right. Using "their" is quite a new idea.
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