Identifying Grammar Errors in Sentence Parts

The question asks us to find a grammatical error in one of the three underlined parts of the sentence: "The best way in which you can(a) open the bottle is(b) by putting it into hot water first.(c) No error. (d)"

Let's carefully examine each underlined part to determine if there is a grammatical mistake or awkward phrasing that constitutes an error in standard English usage.

Analyzing Part (a): "The best way in which you can"

This part introduces the subject of the sentence, which is "The best way in which you can open the bottle". The phrase "the way in which" is grammatically correct in English when used to describe a method or manner. For example, "That's the way in which he solved the problem."

However, when describing the best method or means to perform an action, the structure "the best way to + infinitive" is far more common, concise, and idiomatic in modern English. For example, instead of "The best way in which you can solve this is...", we usually say "The best way to solve this is...".

While "the way in which" is technically correct, the inclusion of "you can" along with "in which" makes the phrase "The best way in which you can open the bottle" somewhat wordy and less direct than the more preferred "The best way to open the bottle" or even "The best way that you can open the bottle". The phrase "in which you can" focuses on the *ability* within the method, whereas the sentence is likely meant to simply state the *best method* regardless of who performs it or their ability, implying it's the universally best method available.

In the context of identifying errors, awkward or non-idiomatic phrasing, especially when a much more standard and concise alternative exists, is often considered an error, particularly in competitive English tests focusing on clarity and standard usage.

Analyzing Part (b): "open the bottle is"

This part contains the main verb "is" connecting the subject (the way) to its complement (the method). The structure "The best way... is..." is a standard sentence structure. The infinitive "open" is part of the subject phrase initiated in part (a). This section appears grammatically sound.

Analyzing Part (c): "by putting it into hot water first"

This phrase explains the method. The use of the gerund phrase "by putting" is a correct way to indicate the means by which something is done. "Into hot water first" correctly describes the action performed. This part is grammatically correct.

Conclusion on the Grammar Error

Comparing the three parts, the phrasing in part (a), "The best way in which you can", is the least standard and most awkward compared to the common and preferred alternatives like "The best way to". While technically "way in which" is possible, the full phrase is verbose and non-idiomatic when "the best way to open" is the clear and standard construction.

Therefore, the error lies in part (a).

A corrected sentence would be: "The best way to open the bottle is by putting it into hot water first."

Summary of Analysis

• Part (a): "The best way in which you can" - Awkward and non-idiomatic phrasing; standard usage prefers "the best way to" when describing a method.
• Part (b): "open the bottle is" - Grammatically correct within the sentence structure.
• Part (c): "by putting it into hot water first" - Grammatically correct phrase indicating the method.

The error is in part (a).

Revision Table: Common Phrases with "Way"

Additional Information: Redundancy and Conciseness in Grammar

One common type of error tested in grammar questions is redundancy or lack of conciseness. While a phrase might not be strictly ungrammatical in isolation, its use within a sentence might be considered poor style or an error if a more direct, clear, and standard way of expressing the same idea exists.

In this case, "The best way in which you can open the bottle" says the same thing as "The best way to open the bottle," but uses more words and introduces a slight, possibly unintended, nuance of ability. Standard English writing often favors the more concise and idiomatic expression unless there's a specific reason for the extra words (which isn't apparent here).

Recognizing these non-standard or verbose constructions is key to mastering sentence correction questions.