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Mahmud6
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Mahmud6
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.

Its D
Estimated to be is right idiom so E and A are out
B used wrong tense it should be are estimated
C used singular subject "was" is wrong and the use of this past tense is also wrong
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D.... discovered in past,,,,

estimated in present tense....
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Mahmud6
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.

Must be (D) for the highlighted errors in other options...
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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.
------------------------------

1. Caves - plural ---> were discovered ----> E is out.
2. Estimation of cave's age - now, today (not in the past) ---> all options except of D are out.

D.
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