Question

The caves of Lascaux, a UNESCO World Heritage Site, were discovered in 1940 by teenagers near the village of Montignac, and is estimated at more than 17,300 years old today.

• A. Site, were discovered in 1940 by teenagers near the village of Montignac, and is estimated at more than 17,300 years old today.
• B. Site, were discovered in 1940 by teenagers near the village of Montignac, and were estimated to be more than 17,300 years old today.
• C. Site, were discovered in 1940 by teenagers near the village of Montignac, and was estimated to be more than 17,300 years old today.
• D. Site, were discovered in 1940 by teenagers near the village of Montignac, and are estimated to be more than 17,300 years old today.
• E. Site, was discovered in 1940 by teenagers near the village of Montignac, and are estimated as being more than 17,300 years old today.

Hint:

Always ensure subject-verb agreement by matching singular subjects with singular verbs and plural subjects with plural verbs.

Answer 1

The Correct Option is B

Step 1: Analyze the sentence structure.
The sentence describes an event (the discovery of the Lascaux caves) and includes the estimation of the caves' age. The subject "Site" should be followed by a verb in the plural form since we are talking about multiple caves.

Step 2: Analyzing the options.
- (A) "Site, were discovered in 1940 by teenagers near the village of Montignac, and is estimated at more than 17,300 years old today" is grammatically incorrect because "site" is singular and "were" is plural, creating a subject-verb agreement issue.
- (B) "Site, were discovered in 1940 by teenagers near the village of Montignac, and were estimated to be more than 17,300 years old today" correctly uses the plural verb "were" with "site" and maintains proper agreement with the verb "were estimated."
- (C) "Site, were discovered in 1940 by teenagers near the village of Montignac, and was estimated to be more than 17,300 years old today" uses the singular "was" after "were," which is a subject-verb agreement error.
- (D) "Site, were discovered in 1940 by teenagers near the village of Montignac, and are estimated to be more than 17,300 years old today" is grammatically incorrect because it mixes past and present tenses, which disrupts the flow.
- (E) "Site, was discovered in 1940 by teenagers near the village of Montignac, and are estimated as being more than 17,300 years old today" is incorrect because the singular subject "site" should agree with the singular verb "was," not "are."

Step 3: Conclusion.
Option (B) is correct because it maintains subject-verb agreement and uses the appropriate tenses.