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The moving images presented by John Logie Baird's device in 1926, together with other important discoveries made at the time, led to the creation of the television.


A. together with other important discoveries made at the time, led to the creation of the television

B. led to the creation of the television, together with other important discoveries that are made at that time

C. together with other important discoveries that were made at the time, led to the creation of the television

D. together with other important discoveries made at the time, leads to the creation of the television

E. together with another important discovery made at the time, led to the creation of the television



OFFICIAL EXPLANATION



The moving images presented by John Logie Baird's device in 1926, together with other important discoveries made at the time, led to the creation of the television.


A. together with other important discoveries made at the time, led to the creation of the television

The sentence is anchored in the Past by the phrase in 1926. By default, this sentence should remain in the Past tense. This answer choice correctly uses the Past tense following the anchor in 1926 (led). It is also concise.


B. led to the creation of the television, together with other important discoveries that are made at that time

This answer choice is grammatically incorrect. The sentence is anchored in the Past by the phrase in 1926. By default, this sentence should remain in the Past tense. The verb are, however, is in the Present. Remember our rule:

    Once in the Past, always in the Past.



C. together with other important discoveries that were made at the time, led to the creation of the television

Although this answer choice is grammatically correct, stylistically, it is not the most concise of the five answer choices. There's another grammatically correct answer choice that is more concise. look for it!


D. together with other important discoveries made at the time, leads to the creation of the television

This answer choice is grammatically incorrect. The sentence is anchored in the Past by the phrase in 1926. By default, this sentence should remain in the Past tense. The verb leads, however, is in the Present. Remember our rule:

    Once in the Past, always in the Past.

The use of the Present tense is also illogical since the television was created a long time ago.



E. together with another important discovery made at the time, led to the creation of the television

Although this answer choice is grammatically correct, it changes the meaning of the original sentence. The phrase another important discovery implies a singular discovery whereas the original sentence implies multiple discoveries.
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