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Zorluk: OrtaVerb Tense and Consistency

The following paragraph describes Alexander Fleming's discovery of penicillin. Fill in the blank with the correct form of the verb 'realize' to ensure proper verb tense consistency within the passage.

Cevap:In 1928, bacteriologist Alexander Fleming returned to his laboratory after a long vacation and noticed that a mold had contaminated one of his petri dishes. He observed that the bacteria immediately surrounding the mold had been destroyed. Fleming 【realized】 that the mold, later identified as *Penicillium notatum*, produced a substance that killed the bacteria.

Cevap

realized
The correct answer is the simple past tense form 'realized' (or 'realised'). The surrounding verbs in the passage ('returned', 'noticed', 'observed') establish that the events took place in the past. To maintain tense consistency, the verb describing Fleming's realization must also be in the simple past tense.

Adım Adım Çözüm

1
Identify the primary tense of the passage by looking at surrounding verbs.
The verbs 'returned', 'noticed', and 'observed' are all in the simple past tense, establishing a past time frame.
Maintaining verb tense consistency requires verbs within the same time frame to agree in tense unless a logical shift is indicated.
2
Determine the correct form of the verb 'realize' to match this simple past tense narrative.
The simple past tense of 'realize' is 'realized' (or 'realised' in British spelling).
This maintains consistency with the rest of the historical recount.

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Verb Tense and Consistency
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Verb Tense and Consistency

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