The correct passive of: `Who can do it`?
By whom can it be do?
By whom can it be did?
By whom can it be done?
By whom could it be done?
Explanation:
Correct Answer is: By whom can it be done?

By whom can it be do?
By whom can it be did?
By whom can it be done?
By whom could it be done?
Correct Answer is: By whom can it be done?

The number of COVID-19 related deaths _______ the world. Option A: have overwhelmed , Option B: has overwhelmed , Option C: undefined, Option D: undefined, correct answer is: has overwhelmed
What is the noun form of the word `laugh`? Option A: laughing , Option B: laughable , Option C: laughter, Option D: laughingly, correct answer is: laughter
The adjective of the word `sustain` is ___. Option A: sustainability , Option B: sustaining , Option C: sustainable, Option D: sustainably, correct answer is: sustainable
The adjective `savoury` is connected with: Option A: colour , Option B: dress , Option C: money, Option D: food, correct answer is: food
What is the verb of `vile`? Option A: Vilefy , Option B: Vilify , Option C: Vility, Option D: Vilisy, correct answer is: Vilify