Question: Ms. Omari's resignation will leave the organization with another major executive opening at a time when it has been trying to replace its longtime Chief Operating Officer, who, last year, left to start her own bootstrapped company.

1. it has been trying to replace its longtime Chief Operating Officer, who, last year, left
2. they have been trying to replace their longtime Chief Operating Officer, who, last year, left
3. it has been trying to replace its longtime Chief Operating Officer, who last year, had left
4. they had been trying to replace their longtime Chief Operating Officer, who, last year, had left
5. it had been trying to replace its longtime Chief Operating Officer, who, last year, had left

Correct Answer: A
Explanation: it has been trying to replace its longtime Chief Operating Officer, who, last year, left- Correct. It uses the proper verb tense "has been trying" to match the future tense "will leave" and the simple past "left" to refer to last year's events.

Option B
they have been trying to replace their longtime Chief Operating Officer, who, last year, left- Incorrect. It incorrectly uses the pronoun "they" to refer to the organisation, a singular entity.

Option C
it has been trying to replace its longtime Chief Operating Officer, who last year, had left- Incorrect. This option wrongly refers to the occurrence from the previous year using the perfect tense, "had left." "Left" must be in the simple past tense as it is the sole past tense occurrence in the passage. The past perfect tense is used to indicate that one action happens before another that also happened in the past. Therefore, we would use the past perfect tense for the activity that occurred initially and the simple past tense for the event that occurred in the past but later.

Option D
they had been trying to replace their longtime Chief Operating Officer, who, last year, had left- Incorrect. Incorrectly use the pronoun "they" to refer to the organisation, a singular entity.

Option E
it had been trying to replace its longtime Chief Operating Officer, who, last year, had left- Incorrect. Incorrectly uses the past perfect "had been trying" instead of the proper "has been trying," as is required to match the future tense "will leave."

“Ms. Omari's resignation will leave the organization with another major”- is a GMAT sentence correction question. These sorts of questions come up with grammatical errors in the underlined part of the sentence. The candidates need to select the correct statement given in the options. The GMAT sentence correction section demands good skills in grammar since the candidate has to identify common grammatical errors. GMAT sentence correction is a part of GMAT verbal.

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