IMO Practice Test — Board Grammar Mastery (CBSE/ISC)
8 Questions • 15 min • Olympiad level
15:00
Question 1 of 8
Edit the line (give all corrections): 'Neither of the plans were accept by the committee.'
were → was; accept → accepted
were → was only
accept → accepts
no error
Explanation: 'Neither' is singular → 'was'; and the passive needs 'accepted'.
Question 2 of 8
Rewrite beginning with 'Not until': 'He understood the danger only when it was too late.'
Not until it was too late did he understand the danger.
Not until it was too late he understood the danger.
Not until did it was too late he understood.
Not until too late was it he understood.
Explanation: 'Not until …' triggers inversion: 'did he understand'.
Question 3 of 8
Identify the collocation error: 'The scientist did a remarkable discovery.'
did → made
remarkable → remark
discovery → discoveries
no error
Explanation: 'make a discovery'.
Question 4 of 8
Change the voice with a reporting verb: 'People believe that he has resigned.'
He is believed to have resigned.
It is believe that he resigned.
He believes he has resigned.
He is believing to resign.
Explanation: 'He is believed to have resigned.'
Question 5 of 8
Combine into one sentence (synthesis): 'The storm subsided. The rescue began. It saved many lives.'
The storm having subsided, the rescue began and saved many lives.
The storm subsided the rescue began saving lives.
Subsiding the storm, the rescue saved lives began.
The rescue began the storm subsided saving lives.
Explanation: Absolute phrase + coordinated verbs combine the three ideas.
Question 6 of 8
Gap fill (formal/literary): 'Little ___ he know that fortune awaited him.'
does
did
had
was
Explanation: 'Little did he know …' (inversion, past).
Question 7 of 8
Edit for style: 'In my personal opinion, I think the plan is good.'
Remove 'personal' and 'I think' (redundant): 'In my opinion, the plan is good.'
good → well
plan → plans
no error
Explanation: 'personal opinion' and 'I think' are redundant together.
Question 8 of 8
Rewrite as directed (degree): 'Very few writers are as influential as Shakespeare.'
Shakespeare is one of the most influential writers.
Shakespeare is the influential writer.
Shakespeare is more influential than writers.
Shakespeare is as influential as writers.
Explanation: 'Very few … as … as' → 'one of the most …'.