Understanding Sentence Improvement and Tense Consistency

The question asks us to select the best alternative to improve the underlined part of the sentence: "Riya went into the shop because it has sale." The underlined part is "it has sale". We need to identify any grammatical errors or awkward phrasing and correct them.

Analyzing the Original Sentence

Let's break down the original sentence:

• "Riya went into the shop": This part describes an action that happened in the past. The verb "went" is in the simple past tense.
• "because it has sale": This part provides the reason for Riya's action. The verb "has" is in the simple present tense.

There are two main issues here:

1. Tense inconsistency: The action ("went") is in the past, but the reason ("has") is given in the present tense. Generally, if the main verb is in the past tense, the verb in the dependent clause explaining the reason should also be in a past tense form (simple past or past perfect, depending on timing).
2. Grammatical error: The phrase "has sale" is grammatically incorrect. The indefinite article "a" is needed before "sale" when referring to a specific sale event, making it "has a sale" or "is having a sale".

Therefore, the original sentence requires improvement.

Evaluating the Alternatives for Sentence Improvement

Let's examine each given option:

Option 1: No improvement

As discussed, the original sentence has tense inconsistency and a grammatical error ("has sale" instead of "has a sale"). Therefore, this option is incorrect.

Option 2: it is having sale

This option suggests replacing "it has sale" with "it is having sale".

• "is having" is in the present continuous tense. This still doesn't align well with the past tense "went" in the main clause. While sometimes a present tense can follow "because" to state a general truth or a condition still existing, describing a temporary event like a sale using present continuous ("is having") feels awkward when the main action ("went") is strictly past.
• The phrase "having sale" is still grammatically incorrect. It should be "having a sale".

This option does not correctly address the tense consistency issue and retains a grammatical error.

Option 3: it having a sale

This option suggests replacing "it has sale" with "it having a sale".

• The word "because" is a subordinating conjunction that introduces a clause. A clause requires a subject and a finite verb (a verb that shows tense).
• "it having a sale" contains a subject ("it") but the verb "having" is a present participle, not a finite verb that can stand alone to form a clause after "because".

This option results in an ungrammatical sentence structure.

Option 4: it had a sale

This option suggests replacing "it has sale" with "it had a sale".

• "had" is the simple past tense form of "have".
• The phrase "had a sale" correctly uses the indefinite article "a" before "sale".
• Using the past tense "had" for the reason ("it had a sale") correctly matches the past tense "went" for the action ("Riya went"). This indicates that the reason for Riya going into the shop was a sale that was happening at that time in the past.

This option correctly addresses both the tense inconsistency and the grammatical error, resulting in a grammatically sound and logical sentence: "Riya went into the shop because it had a sale."

Conclusion on Sentence Improvement

Comparing the options, "it had a sale" is the only one that correctly uses the appropriate tense (past) to match the main verb and is grammatically correct. It provides a clear and consistent reason for Riya's past action.

Therefore, the alternative that improves the underlined part of the sentence is "it had a sale".

Revision Table: Sentence Improvement Concepts

Additional Information: Dependent Clauses and Tense

A dependent clause introduced by "because" explains the reason for the action in the main clause. When the main clause verb is in the past tense, the verb in the "because" clause typically also uses a past tense form to show that the reason existed at or before the time of the main action. For example:

• Incorrect: He was tired because he works hard. (Past action, present reason - inconsistent)
• Correct: He was tired because he worked hard. (Past action, past reason - consistent)
• Correct: He was tired because he had worked hard. (Past action, reason completed before the action - past perfect)

In our sentence, "Riya went" (past action), the reason "it had a sale" (past state) correctly explains the context for the past action.

Sometimes, a present tense can follow "because" even if the main verb is past, but usually when stating a fact or a condition that is permanently true or still true in the present. For instance:

• She knew about geology because she studies it. (Past knowledge, present ongoing study - acceptable if the study is ongoing)
• The bridge collapsed because its foundation is weak. (Past event, present state/fact - acceptable)

However, a sale is a temporary event. Describing a past event ("Riya went") due to a temporary past condition ("it had a sale") requires past tense consistency.