Select the most appropriate option to substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No substitution required’.

Since 10 o’clock in the morning, he worked on this design.

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SSC CPO 2020 Tier-II Previous Paper 5 (Held On: 8 Nov 2021)
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  1. he was working
  2. he had worked
  3. he has been working
  4. No substitution required

Answer (Detailed Solution Below)

Option 3 : he has been working
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SSC CPO : General Intelligence & Reasoning Sectional Test 1
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Detailed Solution

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The correct answer is- 'he has been working.'
Key Points
  • In the given sentence, the action started in the morning and it is still going on.
  • So the sentence is in the present perfect continuous tense.
  • We know that the structure of the present perfect continuous tense is:
    • subject + has/have + been + verb + ing + since/for + object.
      • Example: He has been playing in the garden for 2 hours.
  • Thus option 3 is the correct answer.
And the correct sentence is: Since 10 o’clock in the morning, he has been working on this design.
Confusion Points 
  • We can use present perfect continuous tense for:
    • to talk about a finished activity in the recent past. Using the present perfect continuous focuses on the activity.
      • Example: I’ve just been cleaning the car. (The car is wet and clean.)
    • for a single activity that began at a point in the past and is still continuing:
      • Example: He’s been living in the village since 1995. (He is still living in the village.)
    • to talk about repeated activities that started at a particular time in the past and are still continuing up until now:
      • Example: I’ve been going to Spain on holiday every year since 1987.
Latest SSC CPO Updates

Last updated on May 28, 2025

-> The SSC has released the new SSC CPO exam calendar which includes Notification Details. According to the notification, SSC CPO application will be active from 16th June 2025 to 7th July 2025.

-> The SSC CPO Exam Dates will be conducted from 1st September 2025 to 6th September 2025.  

-> The selection process for SSC CPO includes a Tier 1, Physical Standard Test (PST)/ Physical Endurance Test (PET), Tier 2, and Medical Test.

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